THE  MANUAL 

OF  THE 

American  Railroad  Association 

£9  SIGNAL  DIVISION 

(Formerly  Railway  Signal  Association) 


;S  SPECIFICATIONS 

ISSUE  OF  1920 
Complete  to  December  31,  1919 


Compiled  for  the  Committee  of  Direction  by  the  Editing  Committee  consisting  of 
H.  S.  BalHet,  Chairman 
W.  J.  Eck,  p.  P.  Patenall, 

F.  B.  Wiegand 


Published  by  the  Association 
75  Church  Street,  New  York 


PREFACE. 


The  Manual  ot  the  American  Railroad  Association,  Signal  Division 
was  originally  issned  in  1912  by  the  Board  of  Direction  of  the  Railway' 
Signal  Association  in  accordance  with  the  Constitution  of  that  body 
Which  required  the  Board  of  Direction  to  issue  a  Manual  ot  Recom- 
mended Practice  containing  the  specifications  and  important  standards 
of -the  Association,  also  approved  findings  and  conclusions 

Revisions  and  additions  are  made  yearly  by  the  Signal  Division  and 
such  new  matter  is  identified  with  the  date  approved  by  the  Division 
The  present  edition,  issued  in  two  volumes,  contains  all  matter  which 
has  received  approval  of  the  Railway  Signal  Association  and  ot  the 

TITT       "  '"•'^'^  "^"^^         ^^^^^  ^^0. 

auickly  the  contents  ot  the  specification  section.  The  Standard  Designs 

have  been  arranged  numerically  with  an  alphabetical  and  numerical 


^ignaiLr"'"'/'''  on 
Signaling  m  existence. 

Suggestions  which  will  make  the  Manual  more  valuable  will  be  gladly 
received  by  the  Committee  compiling  the  Manual,  and  it  is  hoped  that 
readers  discovering  errors  wiU  kindly  bring  them  to  the  attent  of 
tne  Committee. 

1920. 


I 

American  Railroad  Association. 
Signal  Division. 


SPECIFICATIONS 

CONTENTS* 
1919 

ABBREVIATIONS. 
ALTERNATOR.— Specification. 
ANNUNCIATORS.— See  Bells. 
AUTOMATIC  BLOCK  SIGNALS. 

Alternating  Current.-A.C.  Propulsion,  Specifications. 
Alternating  Current.-D.C.  Propulsion,  Specifications 
A  ternating  Current.-Steam  Railways,  Specifications. 
Direct  Current.— Specifications. 
AUTOMATIC  SIGNAL  SYSTEMS.-See  Overlaps 
AUTOMATIC  TRAIN  CONTROL 

^Xn?roT       Installation  and  Adjuncts.     (A.  R.  A.) -See  Train 
BATTERY,  PRIMARY. 

Caustic  Soda  Primary  Cell.— Specification 
r^Zi'^  Soda.-Instructions  for  Installation  and  Handling 
Coppers.— Gravity  Battery,  Specification 
Jars,  Specification. 
Jar.— See  Drawings  1053  and  1189 
Zinc— Gravity  Battery,  Specification. 
BATTERY,  STORAGE. 

Concrete  Box,  Specification. 

^Tens'^r"'  ^""'^"^"^^^^^         Operation.     (Charged  from  primary 

Lead  Type,  Electrolyte  for.  Specification. 

Lead  Type,  Directions  for  Installation 

^It^  Instructions  for  Operation  of,  at  Interlockings 

Lead  Type,  Instructions  for  Block  Signal  Service.    (Sne  charg- 

Nickel,  Iron,  Alkaline,  Specification 

Pnr^fhii?'"'  t^r^^^'^'^-A  .Instructions  for  Maintenance. 
Portable  Lead  Type,  Directions  for  Installation. 
Portable  Lead  Type,  Instructions  for  Operation 
Portable  Lead  Type,  Specifications. 
Stationary  Composite  Type,  Specification. 
Stationary  Pure  Lead  Type,  for  Signaling,  Specification 
Stationary.-(Not  of  the  Pure  Lead  Type  )  Specification 
BELLS.  ^^^^^tions  for  Insiallation 

Annunciator,  Specification. 

BRmcf9''Mnvfm''#'^^'^;  Vibrating,  Specification. 
RTTTTOM^  ^^^A^LE,  Protection  of  Traflic  at. 
BUTTONS.— See  Push  Buttons. 

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Amencdti  Railroad  Association. 
Signal  Division. 


CABLES. 

Aerial  Aluminum,  Specification 
Aerial  Braided,  for  660  Volts  or  less.  Specification 
Armored  Submarine,  for  660  Volts  or  less,  Specification 
Armored  Submarine,  for  2200  Volts,  Specification 
Lead  Covered,  for  660  Volts  or  less.  Specification 
Lead  Covered,  for  2200  Volts,  Specification 
Underground  Braided,  for  660  Volts,  Specification. 

CELL. — See  Battery,  Primary. 

CHANNEL  PLNS.— Specification. 

CIRCUIT  NOMENCLATURE  AND  WRITTEN  CIRCUITS. 
CLEARANCE  DIAGRAM.    (The  A.  R.  A.)  • 

COILS  AND  WINDINGS.-See  Impregnation  Treatment,  Specification. 
CONCRETE. 

Box.— See  Battery,  Storage. 

Portland  Cement,  Specification. 
CONDUIT. 

Fibre  Im.pregnated,  Specification 

Pi^rq'ippi^cf^^^'./^'^.^"^^^^^  «^     S^'^tem,  Specification, 
-t^ipe,  bteel,  Specification. 

Pipe,  Wrought  Iron,  Specification 

Vitrified  Clay,  Specification. 

Vitrified  Clay,  Installation  of  a  System,  Specification 
COPPER  SULPHATE.-Specification. 
COPPERS.— See  Battery,  Primary. 
CROSS-ARMS. 

Wood  Specification. 

Braces  and  Heel  and  Toe  Bolts  for.  Specification. 
Steel  Pms  for.  Specification. 

Through  Bolts  and  Double-arm  Bolts  for,  Specification. 
DEFINITIONS  FOR  TECHNICAL  TERMS 

D^Ta WTM^^^^^    REQUIREMENTS.^-See  General  Electric  Reciuirements. 
DRAWINGS.-See  Standard  Designs.    (Separate  Section  ) 

^^^^^Sion"^^^^'^^^'  ^^"^  ^^T^^P^  TANKS.-Specifi- 

FIBRE,  HARD.— Specification. 

FLOOR  PUSHES.-  -See  Pushes,  Floor. 

FORMS.— For  Recording  Signal  Performance 

FRICTION  TAPE.— See  Tape. 

FUSES.— Specification. 

GALVANIZING  FOR  IRON  OR  STEEL.-Specification.    (A  R  A  ) 

GASOLINE  ENGINE.-See  Engine. 

GENERAL  ELECTRICAL  REQUIREMENTS 

GENERAL  PROVISIONS  (for  use  in  Major  Specifications) 

GENERATORS. 

Electric,  Specification. 


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3 

American  Railroad  Association. 
Signal  Division. 


1919. 


GLASS  JARS.— See  Drawings  1053  and  1189. 
GLASS,  SIGNAL.— See  Roundels. 
GLOBES,  HAND  LANTERN.— Specification. 
GRAY  IRON  CASTINGS.— See  Iron. 
HIGHWAY  CROSSING  ALARMS.— See  Bells. 
IDENTIFICATION.— See  General  Electrical  Requirements 
IMPEDANCE  BONDS. 
Specification. 

Petrolatum  for  Use  in,  Specification.    (See  Petrolatum.) 

IMPREGNATION  TREATMENT  OF  COILS  AND  WINDINGS.— Specifi- 
cation. 

INDEXES  TO  MAJOR  SPECIFICATIONS.— 1918  1919. 
INDICATIONS,  SIGNAL,  Principles  of. 
INDICATORS. 

Take  Siding  Indicator. 

Switch,  Purpose  and  Requisites  of  Installation. 
INSPECTION.— See  Standard  Sections. 
INSULATION.— See  General  Electrical  Requirements. 
INSTRUCTIONS. 

Testing  and  Maintaining  Dry  Cells. 

Maintenance  of  Gravity  Cells. 

Maintenance  of  R.S.A.  Caustic  Soda  Cells. 
INSTRUMENTS. 

Ranges  and  Scales  for. 
INTERLOCKING. 

Electric,  Specifications. 

Electromechanical,  Specifications. 

Electropneumatic,  Specifications. 

Mechanical,  Specifications. 

Mechanical,  Machine,  Saxby  and  Farmer,  Specification. 
Power,  Machine,  Specification. 
Requisites,  Mechanical,  Machine,  Specification. 
IRON. 

Castings,  Gray,  Specification. 

Malleable,  Specification. 

Wrought  Bars,  Specification. 
LAMPS. — Incandescent  Electric,  Specification. 
LENSES.— See  Roundels. 
LIGHTNING  PROTECTION. 

Arresters,  Made  Ground  Apparatus. 

Arresters,  Requisites  for. 

Choke  Coils,  Requisites  for. 

Vacuum  Gap,  Specification. 
MACHINERY  STEEL.— See  Steel  Machinery. 
MARKINGS.— See  Standard  Sections. 
MOVABLE  BRIDGES,  Protection.— See  Bridges 
OIL. 

Illuminating,  Specification. 
Transformer,  Specification. 


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4 

American  Railroad  Association. 
Signal  Division. 


OVERLAPS     IN     CONNECTION     WITH     AUTOMATIC  SIGNAL 
SYSTEMS. 

PACKING.— See  Standard  Sections. 
PAINT  AND  PAINTING.— Specification. 

PERFORMANCE  SIGNAL.— Forms  for  Recording.— See  Forms. 
PETROLATUM.— For  use  in  Impedance  Bonds. 
PETROLEUM  ASPHALTUM.— Specification. 
PHRASES  AND  WORDS. 

PINS.— See  Channel  Pins,  or  Cross-arms— Steel  Pins. 
PIPE  COMPENSATION.— Specification. 
PIPE,  SIGNAL. 

Soft  Steel,  One-inch,  Specification. 

Wrought  Iron,  One-Inch,  Specification. 

POLES,  EASTERN  WHITE  CEDAR.— Specification. 

PROTECTION  OF  TRAFFIC  AT  MOVABLE  BRIDGES.-See  Bridges 

PUSH  BUTTONS.— Specification. 

PUSHES,  FLOOR.— Specification. 

REACTORS  FOR  LINE  AND  TRACK  CIRCUITS.-Specification. 
RELAYS,  ALTERNATING  CURRENT.— Specification. 
RELAYS,   LIFTING  ARMATURE,   NEUTRAL   TYPE    DC— Specifi- 
cation. ' 

RELAYS,  DIRECT  CURRENT,  COMPARISONS  OF  RESISTANCE 
RELAYS,  DIRECT  CURRENT,  TABLE  OF  RESISTANCE 
RELEASES.  MECHANICAL  AND  ELECTRIC— Specification 
RESISTORS  FOR  LINE  AND  TRACK  CIRCUIT.— Specification 
ROUNDELS,  LENSES  AND  SLIDES.— Specification. 
RUBBER  INSULATING  TAPE.— See  Tape. 
RULES. 

Governing  Maintenance  of  Block  Signals. 
Governing  Maintenance  at  Interlocking  Plants. 
Governing  Signal  Foremen. 
Governing  Signal  Maintainers. 
Governing  Signal  Supervisors. 

SIGNS  OR  MARKERS  FOR  ENGINEMEN. 
SIGNALS,  A.C.  MOTOR  SEMAPHORE.-^Specification. 
SIGNALS,  D.C.  MOTOR  SEMAPHORE.— Specification. 
SIGNALS,  ELECTRIC  COLOR  LIGHT.— Specification. 
SIGNALS,  ELECTRIC  POSITION  LIGHT.— Specification. 

SIGNAL  PERFORMANCE.— See  Forms  for  Recording  Signal  Perform- 
ance. 

SIGNALING  PRACTICE. 

Signal  Indications  and  Aspects.    (A.  R.  A.) 

Signal  Indications,  Principles  of.    (See  Indications.) 
STANDARD  DESIGNS.— See  Separate  Section. 


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5 

American  Railroad  Association. 
Signal  Division. 


STANDARD  SECTIONS.- (For  use  in  unit  specifications.) 

STEEL,  MACHINERY.— Specification. 

STEEL  PIPE.—  See  Pipe. 

SULPHATE.— See  Copper  Sulphate. 

SWITCHBOARDS. 

Material  for. 

Requisites  for. 

Jr^^.^^i'^^^^'  PURPOSE  AND  REQUISITES  OF  INSTAL- 
LATION.— See  Indicator. 

TAKE  SIDING  INDICATOR.— See  Indicator. 

TAPE,  FRICTION.— Specification. 

TAPE,  RUBBER.— Specification. 

TERMINOLOGY,  ELECTRIC  WIRE  AND  CABLE 

TESTS.— See  Standard  Sections. 

TRAIN  CONTROL.— Automatic. 

TRANSFORMERS. 

Single-phase,  Air-Cooled,  Track,  Specificatior 
Smgle-phase  Line,  Oil  Immersed,  Self-Cooled,  Specification 

TRUNKING,  WOOD.— Specification. 

VOLT-AMMETERS,  PORTABLE  D.C.-Specification. 

VOLTAGE  RANGES  FOR  SIGNAL  WORK 

WIRE. 

Bonding.— Copper-clad  Steel,  Specification. 

Bonding.—Galvanized  E.  B.  B.,  Specification 

Lme.— Copper-clad  Steel,  Specification. 

Line.— W.  P.  D.  B.,  B.B.,  Specification. 

Lme.— W.  P.  D.  B,  Copper,  Specification. 

Magnet.— Copper  Enameled,  Specification 

Messenger.— Galvanized,  Specification 

Messenger.— Recommended  Sags  for 

Rubber  Insulated.— Copper,  Specification. 

Rubber  Insulated.— Inspection  Report,  Form  for 

Rubber  Insulated.— Insulation  Resistances. 

Rubber  Insulated.— Machine  for  Insulating,  Type  of 

Signal.— Galvanized  Steel,  Specification. 

Stranded  and  Flexible  Conductors,  Table  of 
WIRE  AND  CABLE,  ELECTRIC,  TERMINOLOGY.-^See  Terminology 
WIRE  CROSSINGS. 

Crossings  of  Wires  or  Cables  of  Telegraph,  Telephone.  Signal  and 
other  Circuits  of  Similar  Character  over  Steam  Railroad  Rights 
of  Way  Track  or  Lines  of  Wires  of  the  same  classes,  Specifica- 
tions.   (Ass'n  of  Ry.  Teleg.  Supts.) 
WRITTEN  CIRCUITS.-See  Circuit  Nomenclature 
WROUGHT  IRON  BARS.— See  Iron. 
WROUGHT  IRON  PIPE.— See  Pipe. 
ZINCS.— See  Battery,  Primary. 


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American  Railroad  Association, 
Signal  Division. 


I 

American  Railroad  Association.  Alternator. 

Signal  Division.  >  Specification. 
  1919. 


SPECIFICATION  FOR  ALTERNATOR. 
1919. 

(Official  Approval  May,  1920.) 

1.  Requisite  sheet. 

(a)  Requisite  sheet,  section  23,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.        (S.  S.  4-a.)  1919. 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

2.  Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor  wishes 
to  vary  from  the  specification  a  tender  may  be  submitted 
covering  the  apparatus  he  desires  to  furnish.  This  tender 
shall  be  accomplished  by  full  information  showing  where- 
in the  requirements  of  the  specification  are  varied  from. 

(S.  S.  3-a.)  1919. 

3.  Design. 

(a)  The  alternator  shall  be  of  a  design  approved  by  the 
Purchaser.  1919. 

4.  Drawings. 

(a)  Purchaser's  drawings  listed  on  requisite  sheet  form 
a  part  of  this  specification.  1919. 

(b)  The  following  drawings  shall  be  attached  to  the 
Contractor's  tender  and  shall  be  an  essential  part  thereof. 

1919. 

1.  Outline  drawing  giving  over-all  dimensions,  di- 
mensions of  shaft  extension,  and  method  of  bringing 
out  leads. 

2.  Foundation  drawings  giving  size  and  exact  loca- 
tion of  anchor  bolts. 

3.  Drawing  or  catalogue  reference  of  rheostats, 
regulators  anid  other  accessories,  giving  exact  drill- 
ing dimensions,  including  diagramatic  sketch  of  con- 
nections, jgiy 

(c)  Not  more  than  number  of  days  called  for  on 
requisite  sheet  after  award  of  the  contract,  and  before 
work  is  begun,  the  Contractor  shall  furnish,  for  the  ap- 
proval of  the  Purchaser,  a  set  of  drawings  showing  the 
design  and  dimensions  of  all  apparatus  and  proper  con- 
nections of  all  instruments  to  be  furnished  under  this 
specification.  1917. 

(d)  Not  more  than  number  of  days  called  for  on  requi- 
site sheet  after  the  receipt  of  these  drawings,  the  Pur- 


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2 

American  Railroad  Association.  Alteraator. 

Signal  Division.  Specification. 
  ^    1919. 


4-d.    Drawings. — Continued 

chaser  will  indicate  any  corrections  that  may  be  neces- 
sary, or  signify  his  approval.  iQi?- 

(e)  The  Contractor  shall  be  responsible  for  the  cor- 
rectness of  all  drawings  furnished  by  him,  although  the 
drawings  may  have  been  approved  by  the  Purchaser. 

1917. 

(f)  Any  work  done  prior  to  the  approval  of  the  Con- 
tractor's drawings  will  be  done  at  the  Contractor's  risk. 

1917. 

(g)  No  change  shall  be  made  in  any  approved  drawing 
without  the  written  consent  of  the  Purchaser.  1917. 

(h)  After  the  contract  is  awarded  each  party  shall  fur- 
nish to  the  other  necessary  prints  of  his  approved  draw- 
ings, igiy. 

5.    Material  and  workmanship. 

(a)  Material  and  workmanship  shall  be  first-class  in 
every  respect.  (S.  S.  5-a.)  1911. 

(b)  Additional  work  within  the  scope  of  the  contract 
shall  be  done  on  the  basis  of  the  unit  prices  as  stated  in 
the  contract.  (G.  P.  7-b.)    191 1. 

(c)  They  shall  be  acceptable  under  the  rules  of  the 
National  Board  of  Fire  Underwriters  and  under  the  re- 
quirements of  the  local  authorities.  If  any  local  require- 
ments exist,  a  copy  shall  accompany  the  request  for 
quotation  and  shall  be  referred  to  on  requisite  sheet. 

1917. 

5.  Bearings. 

(a)  All  bearings  shall  be  readily  replacable.  The  shaft 
shall  be  provided  with  suitable  means  to  prevent  the  oil 
from  working  along  the  shaft  to  the  rotor.  Plain  bear- 
ings shall  be  self -oiling,  preferably  of  the  ring  type,  and 
shall  have  ample  surface  to  insure  cool  running.  The 
upper  halves  of  the  main  bearings  are  to  be  removable 
without  removal  or  displacement  of  shaft,  on  sizes  of 
fifty  (50)  k.v.a.  and  over.  Bearing  shall  be  provided  with 
babbitted  or  bronze  linings.  1917. 

(b)  When  plain  bearings  are  used,  oil  reservoirs 
capable  of  holding  a  liberal  supply  of  oil  and  convenient 
gauges  for  indicating  the  height  of  the  oil  and  outlets  for 
drawing  it  off  shall  also  be  provided.  There  shall  also  be 
easy  means  for  examining  the  operation  of  the  oiling  de- 
vice. 1914. 

7.  Doweling. 

(a)  Adjoining  portions  of  the  machinery,  where  ef- 
ficiency and  (good  joperation  are  affected  by  alignment,  shall 
be  doweled  or  rabbited  together,  dowels  to  be  fitted  to  ac- 


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3 

American  Railroad  Association. 
Signal  Division. 


Alternator. 
Specification. 
1919. 


7-a.    Doweling. — Continued. 

curately  reamed  holes.  Through  dowels  in  all  cases  shall 
be  provided  with  threads  and  a  nut  for  withdrawal.  Ad- 
joining portions  of  the  machinery  shall  be  given  corre- 
sponding marks  when  desirable  for  securing  correct  as- 
sembly. 1914. 

8.  Rotor. 

(a)  Rotor  must  be  mechanically  strong  and  able  to  run 
at  twenity-five  (25)  per  cent,  overspread  with  safety.  Fans 
or  projecting  parts  of  rotor  must  be  screened  in  such 
manner  that  persons  working  about  the  alternator  are  not 
liable  to  injury.  191 7. 

(b)  The  finished  rotor  shall  be  properly  balanced  and 
run  smoothly,  without  injury  or  vibration,  under  all  con- 
ditions of  operation.  1917. 

9.  Collector  rings. 

(a)  Collector  rings  shall  be  so  mounted  that  air  can 
freely  circulate  aroimd  them,  giving  thorough  ventilation. 
The  construction  of  the  rings  shall  be  such  that  they  can 
be  easily  removed  and  cleaned.  1914. 

10.  Brushes. 

(a)  Each  brush  shall  be  separately  removable  and  ad- 
justable without  interfering  with  any  of  thei  others.  All 
insulating  washers  and  bushings  shall  be  damp-proof  and 
unaffected  by  temperature  up  to  one  hundred  (100)  de- 
grees C.  (212°  F.).  1919. 

11.  Field  rheostat. 

(a)  The  field  rheostat  shall  be  of  fireproof  construction 
and  suitable  for  mounting  on  back  of  switchboard,  un- 
less otherwise  specified  on  requisite  sheet.  When  so 
mounted  it  shall  be  provided  with  a  shaft  projecting 
through  the  front  of  the  switchboard,  either  directly  con- 
nected or  by  sprocket  and  chain.  Hand-wheel  for  front 
of  switchboard  shall  be  supplied  and  shall  be  marked  to 
indicate  the  direction  of  rotation  for  raisinig  and  for 
lowering  the  voltage  of  generator.  The  total  range  of 
adjustment  shall  be  from  fifteen  (15)  per  cent,  above  to 
twenty  (20)  per  cent,  below  the  rated  voltage  at  full  load. 
This  variation  shall  be  approximately  in  steps  of  two  (2) 
per  cent.  191 7. 

12.  Wave  shape. 

(a)  The  maximum  deviation  of  the  wave  form  on  open 
circuit  from  sinusoidal  shape  shall  not  exceed  ten  (10)  per 
cent,  as  determined  by  the  A.  I.  E.  E.  Standardization 
Rules.  1917. 


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4 

American  Railroad  Association.  Alternator. 

Signal  Division.  Specification. 
 I   1919. 


13.  Name-plate. 

(a)  The  name-plate  shall  be  fitted  to  the  alternator  in 
a  conspicuous  place  and  be  marked  v/ith  information  as 
required  by  A.  I.  E.  E.  1917. 

14.  Insulation. 

(a)  Alternator  shall  withstand  the  standard  test  volt- 
age of  A.  I.  E.  E.  Standardization  Rules  and  the  insula- 
tion resistance  of  armature  and  field  windings  shall  be  in 
accordcince  with  A.  I.  E.  E.  rules.  .  1917. 

15.  Temperature. 

(a)  Alternator  shall  carry  normal  load  in  k.v.a.  at 
normal  voltage,  speed  and  power  factor,  continuously  at  a 
temperature  rise  not  to  exceed  the  standards  of  the  A.  I. 
E.  E.  Standardization  Rules.  191 7. 

16.  Overload  capacity. 

(a)  Alternator  shall  be  able  to  carry  for  one  (i)  minute 
at  normal  voltage  at  least  one  hundred  and  fifty  (150)  per 
cent,  of  rated  load  at  power  factor  as  stated  on  requisite 
sheet  by  varying  exciter  voltage;  shall  be  able  to  with- 
stand a  momentary  short  circuit  at  normal  operating  ex- 
citation and  normal  speed  and  must  be  able  to  carry  this 
short  circuit  for  ten  (10)  seconds  without  injury.  191 7. 

17.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defective 
material.   The  Contractor  shall  pay  all  freight  charges. 

(S.  S.  6-c.)  1919. 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1917. 

18.  Tests. 

(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 


.0  60) 


8 


da  31  ^noiiitrfc 


101 


5 

American  Railroad  Association. 
Signal  Division. 


Alternator. 
Specification. 
1919. 


18.  Tests. — Continued. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 

(d)  The  following  tests  shall  be  made  on  all  machines 
in  accordance  with  A.  I.  E.  E.  Standardization  Rules: 

1.  Test  for  polarity  of  field  coils. 

2.  Test  for  resistance. 

(a)  Ohmic  resistance  of  field. 

(b)  Ohmic  resistance  of  armature. 

(c)  Resistance  of  revolving  element  to  be 
taken  between  collector  rings.  1919. 

3.  Insulation. 

(a)  High  potential  test  between  windings 
and  frame  to  determine  dielectric  strength. 

1919. 

4.  Saturation.    (No  load.)  1919- 

5.  Temperature.  I9i9' 

19.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919. 

20.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor  and  name  and  address  of  Consignee, 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents,  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.)  1919. 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  9-c.)  1919- 

21.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of so  as  to,  in  the  Contractor's  judgment,  affect  its  proper 
functioning  or  reliability  nor  which  has  been  subject  to 
misuse,  negligence  or  accident.         (S.  S.  lo-a.)  1919- 


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oi  jj»M:;r  ^'^^^  :r;?rfw  ion  v,.;  ..    ;  : 


6 

American  Railroad  Association.  Alternator. 

„ .  Specmcation. 
Signal  Division.  *^  1919. 


22.  Tools. 

(a)  Lifting  eyes,  and  special  tools,  required  for  as- 
sembling and  disassembling  the  alternator  shall  be  fur- 
nished. 1919. 

23.  Requisites  for  alternator,  A.  R.  A.  specification. 

(a)  Purchaser  to  fill  in  such  items  as  he  desires  to 
specify.  Contractor  to  fill  in  all  other  blanks,  so  that  the 
requisite  sheet  will  be  complete  when  finally  submitted 
with  Contractor's  quotations.  ^9^9' 

(b)  Identification:    Alternators  covered  by  this  sheet 

are  for  R.  R.  on  Inquiry  Order 

 Requisition   I9i7' 

(c)  Alternator  shall  be  furnished  in  accordance  with 
A.  R.  A.  specification.  I9i9. 

(d)  Characteristics. 

1.  Ratings. 

(a)  Rated  capacity  in  k.v.a  

(b)  Power  factor   

(c)  Full  load  terminal  voltage  

(d)  Phases   

(e)  Amperes  per  terminal   

(f)  Frequency  in  cycles  per  second   

(g)  Speed  in  r.p.m  

1917. 

2.  Design. 

,  V  ^  .       (  belt.  ] 

(a)  Connection  |  ^.^^^^   |  ^^^^ 

(b)  Driven  by 
internal  combustion  engine, 
steam  engine, 
water  wheel. 

motor   

1919. 

3.  Type. 

,  ^  „      ,  .      (  field   

(a)  Revolvmg  |  ^.^^ture   

1919. 

4.  Shaft. 

/  N  ti'  .    A  At     S  ^^^Se  coupling   

(a)  Extended  for  I  p^U^y   

1919. 

(b)  Diameter  of  shaft  in  inches 


i alternator    ] 
driving  unit   j 


1917. 


0 


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7 

American  Railroad  Association. 
Signal  Division. 


Alternator. 
Specification. 
1919. 


23-d.    Requisites  for  alternator,  A.  R.  A.  specification. — Continued. 


5.  Pulley. 

(a)  Pulley  diameter    inches. 

(b)  Pulley  face    inches. 

1919. 


6.  Efficienicy.  85%  P.F.  Rated  P.F. 

(a)  One-fourth  (i^) 

load  

(b)  One-half  (i^) 

load   

(c)  Three-fourths 

i%)  load   

(d)  Full  load   

1917. 

7.  Regulation  at  normal  k.v.a.  output. 

(a)  Eighty-five  (85)  per  cent.  P.F  

(b)  Rated  per  cent.  P.  F.   

(c)  Regulation  of  fifty  (50)  per  cent,  load 
(without  voltage  regulator)  P.  F  

1917. 

8.  Losses. 

(a)  Short  circuit  loss  or  synchronous  im- 
pedence   

(b)  Windage  and  bearing  friction  

(c)  Core  loss,  open  circuit  

(d)  Core  loss,  short  circuit  

1917. 

9.  Saturation. 

(a)  Saturation  (at  full  load)  at  per  cent. 
P.F.  specified.  I9i7' 

10.  Exciting  current  at  normal  volts  and  speed. 

(a)  Eighty-five  (85)  per  cent.  P.F.  rated 
k.v.a  

(b)  Rated  P.F   rated  k.v.a. 


(c)   P.F.  at  one  hundred  and 

fifty  (150)  per  cent,  k.v.a.  1917- 

II.  Excitation. 

(a)  Shall  exciter  be  furnished?   

(b)  Exciter  normal  volts   

(c)  Exciting  current  shall  be  obtained  from 
 volt  d.c.  source.  1919. 


\ 


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8 

American  Railroad  Association. 
Signal  Division. 


Alternator. 
Specification. 
1919. 


23-d.    Requisites  for  alternator,  A.  R.  A.  specification. — Continued. 

12.  Rheostats. 

(a)  Shall  be  type    manufac- 
tured by   

(b)  Drilling  template  number   

I'  front  of  board.  ] 

(c)  Mounted  -l  back  of  board.  I 

[  remote  from  panel.^  J 

*I9I7. 

13.  Voltage  regulator. 

(a)  Shall  voltage  regulator  be  furnished? 


(b)  Shall  be  type   ,  manufac- 
tured by    1919. 

14.  Weight. 

(a)  Total  net  weight   

(b)  Total  shipping  weight   

1917. 

15.  Base. 

(  Bed  plate  ] 

I  Slide  rails  \  ^^^^^      furnished  by 

Purchaser    ^ 

■I  Contractor    j> 

[  Engine  builder   J 

1919. 

(e)  Installation. 

f  Purchaser.  ] 
I.  Shall  be  installed  by  |  Contractor.  \ 

1919. 

(f)  Drawings. 

I.  Following  Purchaser's  drawings  are  attached: 

(a)    drawing,  dated  

(b)   drawing,  dated  

(c)  Drawings  approval:  Contractor  shall 
furnish  final  drawings  for  approval  with- 
in not  more  than  days  after 

the  award  of  the  contract. 

(d)  Purchaser  shall  indicate  any  corrections 
to  Contractor's  drawings  within  not 
more  than    days  after  re- 
ceipt of  same.  I9i9« 


.........  b;:- 


9 

American  Railroad  Association. 
Signal  Division. 


Alternator. 
Specification. 
1919. 


23-d.    Requisites  for  alternator,  A.  R.  A.  specification. — Continued, 
(g)  Material  and  workmanship. 

I.  Shall  be  in  accordance  with  local  requirements, 
copy  attached  as  follows: 


1917. 


(h)  Inspection  or  tests. 

I.  Shall  inspections  or  tests  be  made  at  point  of 


production  under  supervision  of  Purchaser? 


chaser  before  apparatus  will  be  ready  for  in- 
spection or  test. 

3.  Shall  inspection  or  tests  be  made  at  destina- 
tion by  Purchaser?   

4.  Shall  record  of  inspection  and  tests  as  fur- 
nished by  Contractor  be  accepted?   


2. 


days'  notice  required  by  Pur- 


1919. 


(x)  Remarks 


(y)  Signed 
(z)  Date  . 


1916. 
1916. 
1916. 


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ail! 


I  Batteries. 

American  Railroad  Association.  Caustic  Soda. 
„ .  Instructions 
 S'Snal  Division.  f^^,  Installa. 

  tion. 

1919. 

INSTRUCTIONS  FOR  INSTALLATION  AND  HANDLING  OF 
CAUlSTIC  SODA  BATTERIES. 
1919. 

(Official  Approval  May,  1920.) 

1.  Housing. 

(a)  Housing  must  be  such  as  to  provide  protection 
against  rain,  snow,  extreme  heat  or  cold.  I9i9« 

(b)  Where  concrete  boxes  are  used  they  must  be  in- 
stalled with  the  bottom  of  the  box  at  least  ten  (10)  inches 
in  the  ground.  iQiQ* 

(c)  Drainage  must  be  provided  as  necessary  to  prevent 
flooding  of  housings.  iQiQ* 

(d)  Cells  must  set  level  on  floors,  shelves  or  racks  and 
arranged  to  permit  of  ready  inspection  of  any  cell  or  ele- 
ment. 1919- 

(e)  Housings  must  be  kept  clean  and  locked.  1919- 

2.  Materials. 

(a)  One  (i)  complete  cell  (except  water)  consists  of 
the  following: 

I  Jar.  I  Unit  (positive  and  negative 

I  Cover.  elements  assembled). 

1  Hexagonal  nut.  i  Can  caustic  soda. 

2  Wing  nuts.  i  Bottle  battery  oil  (When 
2  Washers.  not  self-contained  in 

element). 

1919. 

(b)  Cases  containing  cells  or  renewals  must  be  kept 
dry.  1919- 

(c)  Cells  or  parts  should  not  be  unpacked  except  as  re- 
quired. 1919- 

(d)  Caustic  soda  which  has  been  damaged  by  exposure 
to  air  or  dampness  must  not  be  used.  I9i9' 

3.  Setting  up  new  caustic  soda  cells  and  renewals. 

(a)  Check  material  to  see  that  jars,  covers,  terminals, 
nuts,  washers,  elements,  caustic  soda  and  oil  (when  not 
self-contained  in  element)  are  of  proper  size  and  quantity. 

1919. 

(b)  Remove  packing  material  and  separators  from  as- 
sembled elements.  1919- 

(c)  Examine  assembled  elements.  See  that  proper 
spacing  exists  and  that  connecting  wire  to  zinc  is  firmly 
attached.   Broken  electrodes  must  not  be  used.  1919- 

(d)  Clean  jars  and  covers  thoroughly,  observing  their 
physical  condition.  Cracked  jars  or  covers  must  not  be 
used.  1919. 


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9d  ton  '  jH-'r'.:-v  isaia^rlc; 


2  Batteries. 
American  Railroad  Association.  Caustic  Soda. 
o;„^«or  n.-T^.-c-o^  Instructions 
 ^'Snal  Division,  Installa- 

tion . 

1919. 

Setting  up  new  caustic  sods\  cells  and  renewals. — Continued. 

(e)  Material  unfit  for  use  must  be  called  to  attention  of 
proper  official  and  disposed  of  in  accordance  with  instruc- 
tions. 1919- 

(f)  Use  clean  water  for  mixing  solution.  Water  known 
to  contain  an  excess  of  metallic  salt,  acid  and  alkali,  sew- 
age or  other  impurities  must  not  be  used.  1919- 

(g)  Fill  jars  with  water  to  about  two  and  one-half  (2^X 
inches  from  the  top.  I9i9« 

(h)  Add  caustic  soda  gradually,  stirring  with  clean 
stick  of  wood  until  thoroughly  dissolved.  i9i9' 

(i)  Use  exact  amount  of  soda  furnished  for  each  cell. 

1919. 

(j)  Exercise  care  in  mixing  and  handling  the  solution 
as  it  is  caustic  and  will  burn  the  skin  or  clothing.  If  acci- 
dentally splashed  on  the  skin  or  clothing,  wash  off  im- 
mediately. 1919- 

(k)  Pass  connecting  wire  and  suspension  bolt  through 
holes  in  cover  and  tighten  assembled  elements  securely  to 
cover.  1919- 

(1)  Clean  end  of  wire  leading  from  zinc  to  insure  good 
electrical  contact.  1919- 

(m)  Insert  assembled  elements  in  solution  and  place 
jar  where  practicable  in  permanent  location.  Add  water 
to  bring  top  of  solution  three-fourths  (34)  inch  from  top 
of  jar  with  elements  in  position,  and  stir  thoroughly. 

1919. 

(n)  Add  to  top  of  solution  exact  amount  and  kind  of 
oil  furnished  (except  when  oil  is  self-contained  in  ele- 
ment). 1919- 

(o)  When  elements  are  placed  in  solution  while  hot, 
cells  should  be  connected  up  at  once.  When  not  prac- 
ticable to  operate  apparatus  to  cause  immediate  dis- 
charge, battery  must  be  discharged  at  a  rate  not  to  exceed 
three  (3)  amperes  for  ten  (10)  minutes.  1919. 

(p)  When  elements  are  placed  in  solution  while  hot,  in- 
spections should  be  made  after  battery  cools  and  water 
added  to  bring  top  of  oil  five-eighths  {%)  inch  from  top 
of  jar  and  solution  again  stirred.  1919- 

(q)  Connect  cells  in  circuit  in  accordance  with  fur- 
nished plans  or  instructions.  I9i9« 

(r)  Changes  in  arrangement  of  connections  must  not 
be  made  without  proper  authority.  1919- 

(s)  Record  must  be  kept  showing  dates  batteries  are 
installed,  exhausted  and  renewed.  1919- 


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3  Batteries. 
American  Railroad  Association.  Caustic  Soda. 

o;,r«o;  niTrtcfVin  Instructions 
Signal  Division.  installa- 

~  "  tion . 

1919. 


Renewal  of  exhausted  cells. 

(a)  Except  when  necessary  to  make  replacements,  due 
to  defect,  all  cells  o£  a  series  connected  battery  must  be 
renewed  at  same  time.  I9i9- 

(b)  When  removing  or  installing  cells,  care  must  be 
taken  not  to  interrupt  the  normal  operation  of  circuits. 

1919. 

(c)  Old  solution  and  empty  soda  cans  must  be  buried 
when  practicable;  otherwise  they  must  be  deposited 
where  they  cannot  cause  damage.  iQiQ* 


5.  Inspection. 

(a)  Batteries  must  be  examined  as  often  as  necessary 
to  prevent  failures,  and  voltage  readings  must  be  taken  of 
individual  cells  to  check  their  condition.  1919- 

(b)  Jars  and  covers  must  be  clean  and  connections 
tight  and  free  from  corrosion.  I9i9' 

(c)  Any  unusual  appearance  of  the  elements  or  solution 
must  be  investigated.  I9i9- 

(d)  Defective  cells  must  be  reported  and  if  defect  can- 
not be  remedied,  cells  must  be  replaced  at  once.  1919. 

(e)  Elements  or  solution  removed  on  account  of  de- 
fects, must  be  saved  intact  for  investigation.  1919. 

6.  Disposition  of  exhausted  elements. 

(a)  Exhausted  elements  must  be  drained  off  and  then 
spaced  on  racks,  floors  or  shelves  away  from  inflammable 
material  and  allowed  to  dry  for  three  (3)  days  or  longer, 
after  which  they  must  be  packed  in  renewal  cases  and  for- 
warded to  the  storehouse  or  other  designated  place,  each 
case  being  marked  to  show  the  number  and  type  of  ex- 
hausted elements  contained.  ^9^9- 

(b)  Exhausted  elements  must  be  kept  dry  as  chemical 
activity  of  wet  elements  may  cause  fire.  i9^9- 


•filfjtiVanl  iot_  .  . 

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I 


American  Railroad  Association.  j^^.^ 

Signal  Division.  Specilication. 


Battery. 
Primary 

cai 

1919. 


SPECIFICATION  FOR  PRIMARY  BATTERY  JAR. 
1919. 

(Official  Approval  May,  i92(..) 

1.  Designation.  « 

(a)  Jars  shall  be  in  accordance  with  R.S.A.  1053. 

1919. 

(b)  Manufacturer's  identification  mark  shall  be  blown 
on  side  of  each  jar.  ^9^9- 

2.  Variations.  . 

(a)  Variations  shall  be  within  the  limits  specified  on 

R.S.A.  1053. 

3.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages 
of  manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification 
have  been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does 
not  meet  the  requirements  of  this  specification,  it  may  be 
rejected,  and  the  Contractor,  upon  request,  shall  advise 
the  Purchaser  what  disposition  is  to  be  made  of  the  de- 
fective material.  The  Contractor  shall  pay  all  freight 
charges.  (S.  S.  6-c.)  1919. 

(d)  If  Purchaser  is  to  make  inspection  at  point  of 
production,  it  shall  be  so  stated.         (S.  S.  6-d.)  1917- 


4.  Tests. 


(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919- 

(b)  Contractor  shaU  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919- 

(c)  Contractor  shall  provide  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  ^9^9- 

(d)  Purchaser  shall  select  from  the  proposed  shipment 
either  four  (4)  or  twenty  (20)  jars  for  the  heatmg  and 
chilling  test  and  one  (i)  for  the  solubility  test.  1919. 

(e)  Breakage  for  each  test  shall  not  exceed  one  (i) 
when  four  (4)  jars  are  tested  or  two  (2)  when  twenty  (20) 
jars  are  tested. 


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(os)  ^Jnawt  nadw  (s)  owi  lo  bataat  aiB  aifit  (jv)  ixjo^  «i>dw 


2  Battery. 
American  Railroad  Association.  Jais!^^ 

Signal  Division,  Specification. 
 1919. 


5.  Solubility.  . 

(a)  Expose  one  hundred  and  ten  (no)  square  inches  ot 
inside  of  jar  surface  by  filling  to  the  required  level  with  a 
solution  consisting  of  twenty  (20)  grams  NaOH  (caustic 
soda)  by  titration  in  one  hundred  (100)  ex.  of  distilled 
water,  then  place  in  oven  maintained  at  one  hundred  and 
twenty  (120)  degrees  F.  (49°  C.)  for  one  hundred  hours. 
The  jar  shall  not  show  a  loss  of  weight  in  excess  of  five- 
tenths  (.5)  grams.  ^9^9. 

6.  Heating  test.  „    t..  1  r 

(a)  Round  jars  having  a  specified  wall  thickness  ot 
three-sixteenths  (3/16)  inch,  placed  one-third  (1/3)  their 
depth  in  a  mixture  of  crushed  ice  or  snow  and  salt  at  five 
(5)  degrees  F.  (—15°  C.)  for  ten  (10)  minutes  shall  with- 
stand a  change  in  temperature  due  to  being  half  filled  with 
paraffine  at  three  hundred  and  seventy-five  (375)  degrees 
F.  (190°  C).  Temperature  shall  be  read  with  bulb  of 
thermometer  in  ice  and  against  bottom  edge  of  jar.  Round 
jars  having  a  specified  wall  thickness  of  one-fourth  (34) 
inch  shall  withstand  a  similar  test  with  a  paraffine  tem- 
perature of  three  hundred  and  forty  (340)  degrees  F. 

(171°  c).  ^919. 

7.  Chilling  test.  „    ,  .  ,  r 

(a)  Round  jars  having  a  specified  wall  thickness  of 
three-sixteenths  (3/16)  inch  maintained  at  a  temperature 
of  two  hundred  and  twenty-five  (225)  degrees  F.  (107°  C.) 
for  thirty  (30)  minutes,  either  in  an  oven  or  in  a  boiling 
saturated  salt  solution  shall  withstand  change  in  tempera- 
ture due  to  being  thrust  bottom  downward  in  a  tub  of  ice 
water  at  forty  (40)  degrees  F.  (4°  C.)  and  then  tipped 
over  and  allowed  to  fill.  Round  jars  having  a  specified 
wall  thickness  of  one-fourth  (%)  inch  shall  withstand  a 
similar  test  at  a  temperature  of  two  hundred  and  twelve 
(212)  degrees  F.  (100°  C).  ^9^9- 

8  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.S.  8-a.)  1919. 

(b)  Jars  shall  be  furnished  in  multiples  of  the  contents 
of  a  standard  package.  When  not  so  ordered,  the  Manu- 
facturer may  correct  the  order  to  the  nearest  standard 
package  quantity.  o^l  a 

(c)  Standard  package  for  jars  10532  and  10533,  R.S.A. 
1053,  shall  hold  eight  (8)  jars.  1919. 


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3 

American  Railroad  Association. 
Signal  Division. 


Battery. 
Primary 
Jars. 

Specification. 


1919. 


9.  Marking. 


(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor,  and  name  and  address  of  Consignee, 
shall  be  plainly  marked  on  outside  of  package. 


(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents,  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.)  1919. 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  9-c.)  1919. 

(x)  Remarks   


(S.  S.  9-a.)  1919. 


(y)  Signed 
(z)  Date  . 


1916. 
1916. 
1916. 


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.  ■■■■       '  ■ 


I 

American  Railroad  Association. 

Signal  Division.                                        Fibre.  Har(3 
 Specification, 

SPECIFICATIONS  FOR  HARD  FIBRE. 

1.  Purpose. 

This  material  is  to  be  used  as  insulation  in  railroad 
track  joints,  switch  rods,  signal  apparatus,  etc. 

2.  Material. 

Fibre  shall  be  of  a  horny  nature,  made  from  paper  con- 
taining only  cotton  or  linen  rags  and  shall  have  no  water 
repelling  substance*  applied  on  its  surface.  It  shall  be 
seasoned  for  a  period  of  not  less  than  three  (3)  months, 
after  being  taken  from  the  dry  room.  It  shall  be  entirely 
free  from  chlorides  and  glycerines,  as  well  as  all  other 
chemicals  that  will  in  any  way  tend  to  shorten  its  life  or 
lower  its  insulating  qualities  under  any  condition  of 
service. 

3.  SpeciSc  gravity. 

Fibre  shall  have  a  specific  gravity  of  not  less  than  1.3, 
nor  more  than  1.5. 

4.  Flexibility. 

It  must  stand  bending  into  a  circle  of  a  radius  of  ten 
(10)  times  its  thickness  without  cracking  or  splitting. 
When  bent  to  the  point  of  rupture,  it  should  break  off 
square  and  not  split. 

5.  Design. 

The  shape  and  dimension  shall  conform  to  the  Pur- 
chaser's standard  plans. 

6.  Workmanship. 

All  surfaces,  where  cut,  shall  be  square  and  free  from 
burrs,  fins,  splits  and  other  defects.  The  ends  and  edges 
of  all  pieces  shall  be  sawed,  except  holes  which  may  be 
punched. 

7.  Calendering. 

Fibre  furnished  under  these  specifications  shall  not  be 
calendered. 

8.  Electrical  properties. 

Under  the  application  of  voltage  for  one  (i)  minute  at 
the  stated  potentialls 'between  two  (2)  disc  electrodes,  each 
one  (i)  inch  in  diameter,  the  fibre  shall  not  break  down 
either  by  smoking,  steaming,  puncturing,  or  in  any  other 
manner  fail  under  the  voltage. 

*At  the  request  of  the  Purchaser,  fibre  furnished  as- 
sembled in  and  as  a  part  of  a  complete  article  shall  be 
coated  with  paraffine  just  prior  to  the  assembling. 


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2 

American  Railroad  Association. 

Signal  Division.  Fibre.  Hard. 
 .  Specification. 


9.    Physical  and  electrical  requirements. 

All  fibre  furnished  shall  meet  the  following  require- 
ments : 


Tiu:  _i  

Lbs.  per 
square 
inch, 
tensile 

strength. 

A.C.  voltage 
pressure  for 
one  minute. 

Per  cent,  of  weight 
of  sample  of  water 
absorbed  at  70°  F. 
shall  not  exceed  for 
3  hrs.      6  hrs,    24  hrs. 

Nominal 

Max, 

Min. 

.093 

.103 

.082 

5000 

3000 

18 

24  57 

.125 

•135 

•113 

5000 

4000 

14 

20  45 

.156 

.166 

.144 

5000 

5000 

12 

17  39 

.187 

.197 

.170 

5000 

6000 

II 

14  30 

.250 

.270 

.230 

5000 

8000 

9 

12  26 

10.  Chemical  analysis. 

(a)  The  fibre  shall  be  subjected  to  such  chemical  tests 
as  may  be  necessary  to  insure  that  the  requirements  of 
these  specifications  are  being  complied  with. 

(b)  A  test  for  zinc  chloride  is  to  boil  a  piece  of  fibre 
in  pure  water  for  thirty  (30)  minutes  and  then  add  am- 
monia to  the  solution.  The  presence  of  zinc  chloride  is 
indicated  by  a  white  precipitate. 

11.  Tests. 

Before  tests  are  made,  all  samples  shall  be  subjected  to 
a  temperature  of  seventy  (70)  degrees  Fahr.  for  one  week. 
Tests  may  be  made  at  the  mill  or  at  destination,  as  the 
Purchaser  elects.  The  Manufacturer  must  provide,  at  the 
mill,  all  apparatus  and  labor  for  making  the  required  tests 
under  supervision  of  the  Purchaser. 

12.  Sampling. 

For  testing  and  inspection,  one  (i)  piece  shall  be  taken 
at  random  from  each  lot  of  one  hundred  (100)  pieces  or 
fraction  thereof,  and  the  results  obtained  will  be  taken  as 
representing  the  entire  shipment. 

13.  Shipping. 

Fibre  pieces  shall  be  packed  in  such  a  manner  that  they 
will  hold  their  shape  and  be  protected  from  the  weather 
and  mechanical  injury  during  shipment.  Each  package 
shall  be  plainly  marked  showing  contents,  name  of  Manu- 
facturer, name  of  the  consignee  and  order  number  under 
which  furnished. 

14.  Acceptance. 

If,  after  physical  inspection  of  the  material  and  in  ac- 
cordance with  the  tests,  the  specification  is  met,  the  ma- 
terial v/ill  be  accepted.  If  any  of  the  samples  representing 
the  material  fail  to  meet  these  specifications,  the  shipment 
will  be  rejected  and  returned  to  the  Manufacturer,  who 
must  pay  all  freight  charges. 


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American  Railroad  Association.  General. 
Si,n.l  Division.  

 _  jgjg^ 


GENERAL  ELECTRICAL  REQUIREMENTS. 
1919. 

(Official  Approval  May,  1920.) 

30.  Dielectric  requirements. 

(a)  Unless  otherwise  specified,  electric  apparatus  as- 
sembled shall  withstand  for  one  (i)  minute  an  insulation 

test  at  place  of  manufacture  of    (..)  volts 

a.c*  between  all  parts  of  electric  circuits  and  other 
metallic  parts  insulated  therefrom.  1919. 

(b)  A  surface  leakage  distance  of  not  less  than  

  ( . . )  inch*  shall  be  provided  between  any 

exposed  metallic  part  of  the  apparatus  carrying  current 
and  any  other  metallic  part  thereof.  1919. 

(c)  Separate  windings,  which  are  insulated  from  each 
other,  shall  withstand  for  one  (i)  minute  an  insulation 
test  of    (..)  volts  a.c*  between  their  ter- 

'minals.  I9i9' 

(d)  A  potential  of  twice  the  normal  operating  require- 
ments at  a  suitable  frequency  shall  be  impressed  across 
the  windings  without  any  excessive  flow  of  current  indi- 
cating a  short  circuit.  1919. 

31.  Identification. 

(a)  Magnet  coils  and  resistance  shall  be  plainly 
marked  with  Manufacturer's  references.  191 7. 

32.  Insulation. 

(a)  Coils  and  windings  shall  be  of  cotton  or  silk- 
covered  wire  impregnated;  of  enameled  wire,  or  as 
shown  on  requisite  sheet.  Enameling  or  impregnation 
shall  be  in  accordance  with  R.S.A.  specifications.  1919. 

(b)  Material  used  for  insulation  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 

1917. 

40. 

This  section  is  reserved  for  use  in  identification  for 
electrical  requirements,  other  than  those  covered  by  sec- 
tions 30,  31  and  32. 


*Value  to  be  given  in  specification  for  apparatus  furnished  in  ac- 
cordance therewith.  1919. 


.8161 

.toitsluanl  us  ^imiim  (i)  ano  loi  bfisiaiBiw  Ilfids  bdldni98 

aliov  (. .)  . .  -          •  •  •       ^liiioBltuaBm      asslq  *b  :r89* 

n£  :  :       3ajcis*eib  asjsisal  90bIivb  A  (d) 

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riass  mml  b^tBlttBai  sis  doidw  ,8sn:ibniw  ^isisq^a  (a) 
KohBri/ani  ns  s^Mnim  (i)  »uio  lol  hrr,isrf?iw  MBiia  ^lariio 

-sniwpdi  giiimsqo  lisaiiofi  aili  »3iw:r      l&iimioq  A  (b) 


•tie: 


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.s£  bns  i£  ,oe  anc' 


ni  b^rfainii/l  aitiBiBqqB  io\  noiisoabdqa  ni  navia  3d  oJ  aiilB-/* 


I 

American  Railroad  Association. 

Signal  Division.  General. 

Provisions. 

1919. 


GENERAL  PROVISIONS. 

For  use  in  Major  Specifications. 
1919. 

(Official  Approval  May,  1920.) 

1.  Purpose. 

(a)  The  purpose  of  these  specifications  is  to  provide  ' 
for   1915. 

(b)  These  specifications  describe  the  materials  to  be 
furnished,  work  to  be  performed  and  method  of  construc- 
tion for  a  complete  installation  in  every  detail,  in  strict 
accordance  with  the  drawings  and  specifications  men- 
tioned herein,  and  such  instructions  as  may,  from  time  to 
time,  be  given  by  the  Purchaser,  and  it  is  hereby  under- 
stood that  the  Contractor  agrees  to  furnish  any  and  every 
thing  obviously  necessary  for  such  complete  installation, 
except  that  specifically  stated  as  being  furnished  by  the 
Purchaser.  iQiS* 

2.  Details  of  work. 


1916. 

Detail  and  uni^t  speci&cations. 

(a)  Specifications  referred  to  herein  and  forming  an  es- 
sential part  hereof  are  as  follows :  


  1919. 

4.  Drawings. 

(a)  Purchaser's  drawings.  Drawings  accompanying  the 
specifications  and  forming  an  essential  part  thereof  are  as 
follows; 

I.  Drawing  ,  dated  ,  scale 

one  (i)  inch,  equals   (..)  feet,  showing 

the  arrangement  of  tracks,  grades,  curvature,  the  lo- 
cation of  interlocking  stations,  power  stations,  trunk- 
ing  lines,  pipe  lines,  air  reservoirs,  valves,  location, 
numbering,  type,  arm  travel  and  control  (R.S.A. 
symbols)  of  existing  and  proposed  signals,  location 
and  numbering  of  switches,  derails,  switch  mechan- 
isms, detector  bars,  interlocking  machines,  steam  and 
electric  railway  crossings,  highway  crossings,  high- 
way crossing  alarms,  track  circuit  limits,  trestles, 
stations,  station  platforms,  pole  line  or  other  sup- 
ports for  line  wires  or  aerial  cables,  approximate 
number  of  poles  per  mile,  average  distance  of  nearest 


(.osei          isvoiqqA  IsidBtIO) 
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■joiiBooi  ,jgl£nsi2  hsaoqoiq  bnB  gnitsixa  5o  (^^odm^^a 
-HBrioam  ri.->3cws  taliBiab  ,g3do*iw2  lo  ^nhsjmun  bn£ 

Is  ^nh^oto  ^bw 
xioitBla  ,8nohB*8 

^■m'S  jo}  ?tioq 
I'sJeib  -nun 


2 

American  Railroad  Association. 
Signal  Division. 

  General. 

Provisions. 

4  (a-i).    Drawing. — Continued.  1919. 
pole  from  each  signal  or  relay  box  to  which  line  wire 
connections  are  required,  r^otations  showing  the  sec- 
tions of  rail  and  drilling  of  rail  joints,  and  such  other 
information  as  is  desirable.  1916. 

2.  Drawing   ,  dated   , 

showing  typical  circuits  for  the  control  of  power 
operated  signals,  switch  indicators,  protection  for 
facing  and  trailing  switches,  main-line  and  siding 
crossovers,  highway  crossing  alarms,  train  order  sig- 
nals and   


1911. 

3.  Drawing   ,  dated   , 

showing  typical  circuits  for  approach  locking,  route 
locking,  track  circuits  and  the  control  of  annunci- 
ators, indicators,  repeaters,  and  

1911. 

4.  Drawing   ,  dated   , 

showing  locations  of  battery  housings,  junction  posts 
and    for  typical  signal  and  relay  loca- 

tions. 1915. 

5.  Standard  and  other  drawings  


1915. 

(b)  Contractor's  drawings. 

1.  The  Contractor  shall  furnish,  with  his  proposal, 
drawings  or  catalogue  references  for  the  apparatus 
he  proposes  to  furnish,  which  is  not  covered  by  the 
drawings  furnished  by  the  Purchaser.  191 1. 

2.  Not  more  than   (..)  days  after  the 

award  of  the  contract,  and  before  work  is  begun,  the 
Contractor  shall  furnish,  for  the  approval  of  the  Pur- 
chaser, the  following  drawings:  


Not  more  than   (..)  days  after  the  re- 

ceipt of  these  drawings  the  Purchaser  will  indicate 
any  corrections  that  may  be  necessary  or  signify  his 
approval.  ^9^5- 

(c)  After  the  contract  is  awarded,  each  party  shall  fur- 
nish to  the  other  necessary  prints  of  his  approved  draw- 
ings. 1915- 

(d)  Framed  manipulation  chart  and  track  diagram  shall 
be  furnished  in  place  by  the   I9i5- 


Iw  9nH  Hf  >rrfw  o*  xotf  ysl^t  lo  }'B«^ra  H.oss  mai!  sfoq 

,jj,gr  aabiixmoini 

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loiJnoa  drit  loi  siijuoiia  iBoiq^i  ^iwoi':^ 

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 ■    hr'fi  ;;l5n- 


  Msfo 

.  0*113  sIosT*  .^nHoof 


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airifiisqqfi  9di  lol  2SDn3i93:9i  ^trgolBiBO  10  a§niw6ib 
sdl       baidvoo  ion  ai  ii::>iriw  ^dainnii      aaaoqoiq  ari 

VBb  (,.)...-  jfxi  iold  ,s 

?  5rll  :ro3;  ,rfaimi/i  Ufiria  loio^iJnoO 
sniwsib  gntwoUc: 


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,^1.  ifivoiqqB 

it 

-ml  Hfiria  ^bfjbiBws  ai  ^o&iJnoo  ari*  lailA  (o) 

  3dt  yd  ^osiq  nt  bsrfprmul  ad 


3 

American  Railroad  Association, 

Signal  Division.  «--fj„^. 

  1919. 


5.  Proposals. 

(a)  With  his  proposal  the  Contractor  shall  submit  sup- 
plemental specifications,  stating  his  interpretation  of  the 
specification  requirements.  1916. 

(b)  The  proposals  must  meet  the  requirements  of  the 
specification;  however,  if  a  bidder  wishes  to  vary  from  the 
specifications  or  drawings,  an  alternative  proposal  may 
be  submitted.  Full  information  must  be  furnished  with 
[he  alternative  proposal  to  show  wherein  the  require- 
ments of  these  specifications  are  varied  from.  1919. 

6.  Contract. 

(a)  As  soon  as  practicable  after  the  award  is  made  

  (.  .)  copies  of  the  contract,  in  accordance 

with  the  accompanying  form,  will  be  presented  to  the 
Contractor  for  signature,  after  which  all  copies  will  be 
signed  by  the  Purchaser  and  two  will  be  returned  to  the 
Contractor.  1919. 

7.  Changes  and  additions. 

(a)  Changes  and  additions,  as  provided  for  in  the  con- 
tract, shall  be  made  in  accordance  with  the  specifications. 

1911. 

(b)  Additional  work  within  the  scope  of  the  contract 
shall  be  done  on  the  basis  of  the  unit  prices  as  stated  in 
the  contract.  191 1. 

8.  Material  and  workmanship. 

(a)  Material  and  workmanship  shall  be  first-class  in 
every  respect.  191 1. 

9.  Furnished  by  the  Purchaser. 

(a)  The  Purchaser  will  furnish  material  and  labor  on 
items  in  9-c,  as  follows: 

1.  Material  only   

  1915. 

2.  Labor  only  

  1915. 

3.  Material  and  labor  

  1915. 

(b)  The  Purchaser  will  furnish  the  items  indicated 
above,  subject  to  the  inspection  of  the  Contractor,  who 
shall  state  any  objections  thereto  before  starting  his  part 
of  the  work.  After  rectification  by  the  Purchaser  of  any 
defects  reported,  the  Contractor  shall  assume  full  re- 
sponsibility for  the  proper  functioning  of  the  installation. 
The  intent  of  this  section  is  to  bar  any  claim  by  the 
Contractor  that  the  work  done  by  the  Purchaser  has  not 


.airolKivo'f' 

P !  '1 1. 


-qua  iicr  '     ■      '  ^oj:>B-iino^  i^^i:)  ■  ' 

Dili  'io  nc  ^^mi  gM  ^muss  ^qa  IsJrmnalq 

sffl  io  atnamaimpai  srf*  ^^um  eleaoqoiq  sriT  (d) 

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r^j"..  f  ^r^f^hnal  »d  iaum  aob&aiiQlm  IIuU    .fa^Jlimdua  ad 

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adi       53tn339^a  ^sd  lliw  ,miol  §xii'<cn£qmoo3B  drii  nnw 

9d  Oiw  owJ  felifi  i^a&diiia^  arfi  ^jd  bariBie 
-rior»  srfl  nl  io5  b^bivoiq  a£  ,zaohihb^  bns  Ba^nsdO  (b) 

ni  f-3iBJH  Efi  fe':>ohq  iinri  ?>dl  Ito  aisud  adt  no  snob  sd  HBria 
j  .^,^  Jasiinoa  aril 

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Hi  88rVo'-«Bi^  sd  irsrfa  qidsnBHisJiow  bns  iBhaisM  (b) 


fi^tf-  IshstBm  dainitfi  Mew  isasriain^  sdT  (b) 

BWOlloi  'SB-fS-e  ni  amaii 
  vino  iBii^i  bM  .1 


,,^T  g]   ,  ■  

bsiBoibm  sm^n  ^di  dztmul  Ilm  i^sBdois^  ^dT  (d) 
oxiw  ,ioJDBi*no3  io  noboaqam  adl  iosldoa  .svou::; 
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^,nB  lo  laafiriDiuq  adi  nohsaftbasi  lailA  .allow  sdi  lo 
-31  IIol  srnuaaB  Hada  lolofiilnoQ  sdt  ^aJioqai  a^asisb 
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adi  y.d  mifilD  ^cnB  iBd  ot  ai  nohosp.  aidi  lo  imiai  ad'T 
jon  afid  i98Brioiiig  9fii  yd  snob  3ltow  drf*  iBd*  iotDBiino3 


4 

American  Railroad  Association. 

SUnal  DWision.  %l^t.s. 

 ~   1919. 


9.    Furnished  by  the  Purchaser. — Continued. 

been  performed  in  such  manner  as  to  enable  him  to  fulfill 
all  of  the  provisions  of  the  contract.  1919- 


(c)  Items. 

I. 

Ties  for  support  of  apparatus. 

1915. 

2. 

Move  ties  as  may  be  necessary. 

1915. 

3. 

Move  switch  and  tie  rods  as  may  be  necessary. 

1915- 

4. 

Rail  insulations. 

1915. 

5. 

Bridge  insulations. 

1915- 

6. 

Switch-rod  insulations. 

1915. 

7. 

Tie-rod  insulations. 

1915. 

8. 

Tie-plate  insulations. 

1915. 

9. 

Sand,  stone  and  cement. 

1915. 

10. 

Necessary  grading  and  drainage. 

1915- 

II. 

Excavation  of  solid  rock. 

1915. 

12. 

Poles  for  line  wire. 

1915. 

13- 

Cross  arms,  pins  and  insulators. 

1915. 

14. 

Line  wire. 

1915- 

15. 

Battery  wells. 

1915. 

16.  Signal  bridges. 

1915. 

17. 

Aerial  cable. 

1915. 

18. 

Submarine  cable. 

1915- 

19. 

Apply   necessary   attachments  to 

signal  ap- 

paratus  in  service.  1915. 

20.  Make  necessary  alterations  of  any  part  of  exist- 
ing structures  or  apparatus.  i9i5' 

21.  Unload  and  properly  house  material  that  ar- 
rives on  the  ground  before  the  Contractor's  force; 
this  work  to  be  done  under  the  supervision  of  the 
Contractor's  representative.  1916. 

22.  Distribute  material.  1915. 

23.  Obtain  necessary  permits  from  Federal,  State 
and  Municipal  authorities.  1915. 

24.  Switches,  derails  and  movable  point  frogs  of 
the  required  throw.  191S. 

25.  Tools,  fixtures  for  buildings  and  supplies  re- 
quired for  the  maintenance  of  the  plant.  I9i5' 

26.  Rail  braces,  except  those  located  on  tie  plates 
installed  by  the  Contractor.  1915- 

27.  Remove  obstructions  to  permit  the  installation 
of  detector  bars.  I9i5« 

28.  Submarine  air  pipe  line.  1915- 


,viHaa&3dn  ad  tj&ra  a£  aboi  ah  bKfi  rioliwa  svoM  t 
^^j-Qj  axiohBluaal 

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^^igi  .anoiijsluafii  siKlq-aiT  .8 

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.gxgi  .3iD0i  bifojs  'to  fiohfiVBDxa  ,11 

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aril  'io  noisnnaqiia  sAi  ushnu  sfiob  ' 

.gigx  .isKalBm  sjuuiiiaiu. 

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.pxjjj  .asijhodJuB  iBqiainuM  bstp, 

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,ljQi  .woidi  b^ilup^i  i>rii 

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.pxgx  i-qi^  -iis  sniTtBfndwS  .8:^ 


5 

American  Railroad  Association.  General. 
Signal  Division. 


9.  (c).    Furnished  by  the  Purchaser. — Continued. 

29.  Prior  to  installation,  furnish  stakes  establish- 
ing grade  of  track  at  points  where  pipe  lines  are  to 
be  run.  191 6. 

10.  Inspection  of  material. 

(a)  Material  at  any  time  before  installation  shall  be 
subject  to  the  inspection  of  the  Purchaser's  accredited 
representative.  1911. 

11.  Shipment  of  material. 

(a)  Material  shall  be  shipped  to  care  of 

 ,  marked  for   Material  shipped 

from  Contractor's  factory  at   shall  be 

shipped  via  and  thence  via  

to  destination.  191 1. 

12.  Transportation. 

y    s  t  (     will  ]  ^ 

(a)  The  Purchaser  |  ^jjj         ^  furnish  transportation 

for  men,  necessary  for  the  installation,  over  the  follow- 
ing lines  


 •   1915- 

(b)  The  Purchaser  )  ^^}}  ^  l  furnish  transportation 
^  '  ^  will  not  \ 

for  tools  and  material,  necessary  for  the  installation,  over 

the  following  lines   

  1915. 

13.  Supervision. 

(a)  The  installation  shall  be  made  under  the  super- 
vision of  the  Purchaser's  accredited  representative. 
?  1919. 

14.  Inspection  of  installation. 

(a)  The  Contractor  shall  advise  the  Purchaser  

(..)  days  in  advance  of  the  time  the  installation  will  be 
completed  and  ready  for  final  inspection.    The  Purchaser 

will  make  inspection  and  tests  within   (..) 

days  after  the  completion  of  the  work.  iQiS- 

15.  Precautions. 

(a)  The  Contractor  shall  place  sufficient  and  proper 
guards  for  the  prevention  of  accidents,  and  shall  put  and 
maintain,  at  night,  suitable  and  sufficient  lights,  as  pre- 
scribed by  the  Purchaser.  iQiQ- 

(b)  The  Contractor  shall  do  no  work  that  may  inter- 
fere with  traffic  until  protection  has  been  provided  by  the 
Purchaser.  191 1. 


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^  ,   a»nH  §ni 


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^Igl    s       .  , 

........  i98Bd3iw'I  adi  sai/bB  iisii?.  notoBiiftoD  ^dT  (s) 

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isasdDiwq  sdT  .noU^^qam  isnft  lol  ^cbBSi  biis  bstdlqrnoo 
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j^i  .jItow  ^dl      nohalqmoa  ddi  tsjIb  a^Bb 

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3r'l       bf»bxvo-ia  n^sd  ssrl  nohodtoiq  IBnu  ofi&Bit  diiw  ai^l 


6 

American  Railroad  Association.  ^ 

„.  General. 
Signal  Division.  Provisions. 

 —   1919. 


15.  Precautions. — Continued. 

(c)  The  Purchaser  will  promptly  arrange  to  protect 
traffic  upon  request  of  the  Contractor.  191 1. 

16.  Use  of  hand  and  other  cars. 

(a)  The  use  of  the  following  cars  will  be  permitted  and 
the  Purchaser's  regulations  for  their  operation  are  made 
a  part  of  this  specification: 

Number  Furnished  by 

Motor  cars    (. .)   

Velocipede  cars    (..)   

Hand  cars    ( . . )   

Push  cars   ( . . )   

1919. 

(b)  When  the  Contractor  is  not  permitted  to  use  cars, 
the  Purchaser  will  distribute  material,  under  the  super- 
vision of  the  Contractor's  representative.  1916. 


17.  Tests. 

(a)  The  Contractor  shall  make  such  tests  as  may  be 
necessary  to  demonstrate,  to  the  satisfaction  of  the  Pur- 
chaser, that  the  apparatus,  as  installed,  is  in  accordance 
with  the  requirements  of  the  specifications  and  contract. 
The  Contractor  shall  provide  such  instruments  and  ap- 
paratus as  may  be  necessary  for  making  the  tests.  The 
instruments  and  apparatus  shall  remain  the  property  of 
the  Contractor.  1916. 

18.  Placing  in  service. 

(a)  After  receipt  of  written  authority  from  the  Pur- 
chaser, the  Contractor  shall  place  the  installation  in  ser- 
vice under  the  supervision  of  the  Purchaser,  and  shall 

leave    (..)  competent  men  on  duty  for 

  (..)  days  thereafter.  1911. 

(b)  The  Purchaser  will  place  the  installation  in  service 
in  the  event  that  he  does  not  authorize  the  Contractor  to 

do  so  within   (..)  days  after  the  completion 

of  the  work  to  the  Purchaser's  satisfaction.  1915- 

(c)  Signal  aspects  shall  be  displayed  or  changed  only 
as  authorized  by  the  Purchaser.  1916. 

19.  Completion. 

(a)  When  the  installation  is  completed,  the  apparatus 
and  the  surface  of  the  ground  which  has  been  affected  by 
the  installation,  shall  be  left  in  a  neat  and  clean  condition. 

1911. 


s 

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,    ,  ,   ,   ,  \  8t£;:. 

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7 

American  Railroad  Association. 
Signal  Division. 


General. 
Provisions. 

1919. 


20.  Warranty. 


(a)  The  Contractor  shall  replace,  at  his  own  cost,  any 
part  or  parts  of  the  apparatus  and  material  furnishedi  by 
him,  which  shall,  within  a  period  of  one  (i)  year  from 
date  of  acceptance  of  the  installation,  fail  to  perform  its 
proper  fimction  because  of  any  defect  in  the  design,  con- 
struction, application,  or  erection  of  such  apparatus. 


1919. 


Xn.&  JBOO  nwo  Bid  Is  ..ansUpi  Hfiffa  lOio^titroO  arfT  (s) 
moil  iJEsev:  (i)  ^no       boliaq  B  niriliw  ,It£ris  ri^iriw  ,mid 


I  Impedance 
American  Railroad  Association. 

Signal  Division,  Specification. 


SPECIFICATION  FOR  IMPEDANCE  BOND. 
1919. 

(Official  Approval  May,  1920.) 

1.  Requisite  sheet. 

(a)  Requisite  sheet,  section  17,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.        (S.  S.  4-a.)  1919- 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

2.  Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor 
wishes  to  vary  from  the  specification,  a  tender  may  be 
submitted  covering  the  apparatus  he  desires  to  furnish. 
This  tender  shall  be  accompanied  by  full  information 
showing  wherein  the  requirements  of  the  specification 
are  varied  from.  (S.  S.  3-a.)  igiQ* 

3.  Design. 

(a)  The  impedance  bond  shall  be  of  a  design  approved 
by  the  Purchaser.  iQ^?- 

(b)  The  case  and  cover  shall  be  of  cast  iron,  and 
weather-proof.  The  lugs  on  the  case  to  be  located  so 
that  the  impedance  bond  can  be  supported  between  ties 
or  located  on  a  foundation  as  specified  on  requisite  sheet. 

1919. 

(c)  The  case  and  cover  shall  be  so  constructed  that 
protection  will  be  afforded  against  loss  of  the  cooling 
medium  at  temperature  corresponding  to  the  rated 
capacity  of  the  bond.  1919- 

(d)  The  length  and  size  of  cables  shall  be  as  shown  on 
requisite  sheet.  ^9^9' 

(e)  Bond  terminals  shall  be  furnished  with  bonds. 
They  shall  be  of  such  design  as  to  take  the  cables  speci- 
fied on  requisite  sheet.  1919- 

4.  Air  gap. 

(a)  When  the  bond  has  an  air  gap  in  its  magnetic  cir- 
cuit, it  shall  be  so  designed  that  the  air  gap  may  be 
varied  by  varying  the  thickness  of  the  air  gap  spacers. 

1917. 

5.  Petrolatum  or  transformer  oil. 

(a)  If  furnished  with  tlie  bond,  shall  be  as  specified  on 
requisite  sheet.  1919- 

(b)  If  furnished,  shall  be  sufficient  to  fill  the  bond  case 
to  a  line  which  shall  be  indicated  by  the  Manufacturer  to 
designate  the  oil  or  petrolatum  level.  1919- 


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QiQi  .lavj^i  mutsioi*»<l  lo  fio  adl  slBngiaa^i 


American  Railroad  Association,  Impedance 

Signal  Division.  Kication. 


6.  Dielectric  requirements. 

(b)  A  surface  leakage  distance  of  not  less  than  one- 
fourth  (%)  inch  shall  be  provided  between  any  exposed 
metallic  part  of  the  apparatus  carrying  current  and  any 
other  metallic  part  thereof.        (G.  E.  R.  30-b.)  1919. 

(e)  Separate  windings  which  are  insulated  from  each 
other  shall  withstand  a  potential  test  of  five  hundred 
(500)  v'olts  a.c.  for  one  (i)  minute  between  their  terminals. 
All  windings  shall  withstand  a  high  potential  test  of  two 
thousand  (2000)  volts  a.c.  for  one  (i)  minute  between 
their  terminals  and  other  metal  parts  from  which  these 
windings  are  insulated.  ^9^9- 

7.  Insulation. 

(b)  Material  used  for  insulation  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 

(G.  E.  R.  32-b.)  1917. 

8.  Capacity. 

(a)  The  capacity  of  the  bonds  shall  be  as  specified  on 
requisite  sheet.  1919- 

(b)  Bonds  intended  for  direct  current  propulsion  shall 
be  so  designed  that  the  propulsion  current  in  one-half  (%) 
the  winding  may  exceed  that  in  the  other  half  by  twenty 
(20)  per  cent,  of  the  total  (two  rail)  continuous  capacity 
of  the  bonds  without  the  impedance  decreasing  more  than 
ten  (10)  per  cent,  at  the  stated  impressed  signal  voltage. 

1917. 

9.  Temperature  rise. 

(a)  The  temperature  rise  for  capacities  at  duration 
stated  on  requisite  sheet  shall  not  exceed  seventy-five 
(75)  degrees  C.  (167°  F.)  based  upon  a  room  temperature 
of  twenty  (20)  degrees  C.  (68°  F.).  1919. 

(b)  The  temperature  rise  shall  be  determined  by  the 
resistance  method.  Thermometer  readings  shall  also  be 
taken  in  the  cooling  medium  and  on  the  coils,  core  and 
case.  The  highest  reading  obtained  shall  be  used  in  de- 
termining temperature  rise.  1919- 

(c)  Tests  for  intermittent  ratings  to  be  started  at  ap- 
proximately room  temperature.  1919. 

10.  Resistance. 

(a)  The  ohmic  resistance  of  the  bond  shall  be  as  stated 
on  requisite  sheet.  1919- 

(b)  This  measurement  shall  be  taken  at  room  tempera- 
ture and  corrected  to  a  standard  temperature  of  twenty 
(20)  degrees  C.  (68°  F.).  The  temperature  of  the  coil 
shall  be  carefully  determined  by  a  thermometer.  1919. 

(c)  This  measurement  shall  be  taken  between  the  ter- 


■■  '  — — — 

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;  sJurirm  (i)  sno  loi  /^.b  a^iov  (ooos)  hai,'cuodi 
^asv)j  rao-O  ---r.  --rio  bns  Kifinitnisi -li^rii 

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^fji-} ■;:^?0T/fihno3  fl'"-^  o-^^O '^s^oi  aril  lo  laq  (os) 

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[?o->  arii  lo  5ioiBi3qmat  srfT  '^Sd)  .D  aaai^ab  (os> 


3  Impedance 
American  Railroad  Association,  Bond. 

Signal  Division,  Specificaition. 
  1919. 


lo-c.    Resistance. — Continued. 

minals  of  the  coil  and  shall  not  include  the  cables  from 
the  bond.  191 7* 

11.  Name-plate. 

(a)  A  metal  name-plate  shall  be  attached  to  the  bond 
cover,  so  that  it  can  be  readily  seen  when  the  bond  is  in 
place.  This  plate  shall  contain  the  following  informa- 
tion: 

1.  Name  of  Manufacturer. 

2.  Drawing  or  specification  reference. 

3.  Serial  number. 

4.  Impedance  in  ohms  at  a  stated  impressed 
voltage  and  frequency. 

5.  Continuous  capacity  in  amperes  per  rail. 

6.  Ohms  resistance.  1917. 

12.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification 
have  been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defective 
material.    The  Contractor  shall  pay  all  freight  charges. 

(S.  S.  6-c.)  1919. 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1919. 

13.  Tests. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-a.)  1919. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  imder 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 

(d)  The  impedance  and  ohmic  resistance  of  the  bonds 
shall  not  vary  more  than  fifteen  (15)  per  cent,  above  or 
below  the  values  specified.  I9i7« 

(e)  The  power  factor  of  the  bonds  shall  not  vary  from 
the  specified  value  by  more  than  twenty-five  (25)  per 
cent,  of  said  value.  I9i7' 

(f)  All  bonds  shall  be  subjected  to  tests  to  determine: 

1.  Impedance  at  rated  voltage  and  frequency, 
using  sine  wave  e.m.f. 

2.  Insulation.  1917. 


(M<U 


;  fljsrfa  bnjs  troy  f>dl  'to  aisnim 


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.oiex    (.d-d, a, a)  J3mn.^d.vBd 

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^^^j  .baftiaaqe  saulfiv  adi  wolad 

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i^a  'j'/ft-^rifi'^wi  nsd*  aiom  \(i  aiiffiv  baftioaqs  ads 

^^j^;  "  .aulBV  biB8  Jnao 

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}§B*iov  foalBt  *B  aonsbaqnil  ^ 


4 

American  Railroad  Association, 
Signal  Division. 


13.  Tests. — Continued. 

(g)  The  following  test  shall  be  made  on  the  first  two 
(2)  bonds  of  new  characteristics : 

1.  Ohmic  resistance. 

2.  Power  factor  at  rated  voltage. 

3.  Variation  in  impedance  with  variation  in  im- 
pressed voltage  at  signaling  frequency  and 
specified  air  gap.  1917- 

14.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919. 

15.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  num- 
ber, name  of  Consignor  and  name  and  address  of  Con- 
signee, shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents,  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.)  1919- 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  9-c.)  1919. 

16.  Warranty. 

(a)  Contactor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  effective,  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of so  as  to,  in  the  Contractor's  judgment,  affect  its 
proper  functioning  or  reliability,  nor  which  has  been  sub- 
ject to  misuse,  negligence  or  accident. 

(S.  S.  lo-a.)  1919. 

17.  Requisites  for  impedance  bond,  A.  R.  A.  speciScation. 

(a)  Purchaser  to  fill  in  such  items  as  he  desires  to 
specify.  Contractor  to  fill  in  all  other  blanks,  so  that 
the  requisite  sheet  will  be  complete  when  finally  sub- 


mitted with  Contractor's  quotation.  1919- 
(b)  Identification. 

Impedance  bonds  covered  by  this  sheet  are  for  

  Railroad  on  Inquiry  ,  Order 

 ,  Requisition   19 17- 


Impedance 
Bond. 

Specification. 


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.^ipT  noit.faiiipaJS[ 


American  Railroad  Association. 
Signal  Division. 


Impedance 
Bond. 

Specification. 
1919. 


17.    Requisites  for  impedance  bonds,  A.  R.  A.  specitication. — Con. 

(c)  Impedance  bonds  to  be  furnished  in  accordance 
with  the  following  drawings  

1917. 

(d)  Characteristics. 

1.  Number  of  each  type  of  bond  required  

2.  Manufacturer's  name   

3.  Catalogue  or  drawing  reference  

4.  Frequency  of  signaling  currents    cycles. 

j  Single  type   


5.  Bonds  to  be  ,         ui  ^ 

[  Double  type 

6.  Impedance  of  bond 

7.  Normal  air  gap  per  side  in 

magnetic  circuit 


Ohms  at  volts 


8.  Traction  current 


d.c.  at    volts  ^ 

a.c   cycles  I 

[at   volts  j 

9.  *Ohmic  resistance  of  complete  coil  at  20  degrees  C. 
(68°  F.)   ohms. 

Continuous  amps. 


10.  Capacity  of  bonds 
Amperes  per  rail 


Intermittent  ■ 


....  amps, 
for  2  hrs. 


 amps. 

for  10  min. 


 amps. 

for  5  sees. 


f  Air   

11.  Cooling  medium  of  bond  \  Oil   

[  Petrolatum 

12.  Oil  or  petrolatum  to  be  furnished  by  . 


13.  Oil  or  petrolatum  shall  be  in  accordance  with 
R.  S.  A.  Specification.  ) 
  Specification.  X 

fon  foundation  , 
between  ties  and  rails 
beside  track  


♦Measurement  to  be  made  between  leads  where  they  leave  the  bond 


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American  Railroad  Association. 
Signal  Division. 


17-d.    Requisites  for  impedance  bond,  A.  R.  A.  speciHcation. — Con. 

No.  of  conductors  


Impedance 
Bond. 

Specification. 
1919. 


15.  Cables  from  bond 


16.  Cables  for  neutral 
point  of  bond 


17.  Cables  for  cross 
bonding 


18.  Cables 


19.  Rail  terminals 


No.  of  strands  in 

each  conductor  

Length   ft. 

Cross  section  CM. 

To  be  furnished  by  

No.  of  conductors  

No.  of  strands  in) 

each  conductor   

Length    ft. 

Cross  section   CM. 

To  be  furnished  by  

No.  of  conductors  

No.  of  strands  in 

each  conductor   

Length    ft. 

Cross  section   CM. 

To  be  furnished  by  


Bare  . . . 
Insulated 
Tinned  . 
Untinned 


Compressed  type   

Expanded  type   

Catalogue  or  dwg.  refer- 

ence  

Number  per  bond  

To  be  furnished  by  


20.  Terminals  for  cross 
bonding 


To  be 
designed  j 
for 


f  Cables 

I  each. .  .CM. 
and 

 Cables 

each. .  .CM. 
Catalogue  or  dwg.  refer 

ence  

To  be  furnished  by  

1919. 

(e)  Bolts  or  lag  screws  to  be  furnished  by  

1919. 


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7 

American  Railroad  Association. 
Signal  Division. 


Impedance 
Bond. 

Specification. 


1919. 

17.    Requisites  for  impedance  bond,  A.  R,  A.  speci&cation. — Con. 

(f)  Special  requisites   


1919. 

(g)  Weight. 

1.  Total  net  weight  

2.  Total  shipping  weight   

1919. 

(h)  Inspection  or  tests. 

1.  Shall  inspection  or  tests  be  made  at  points  of 
production  under  supervision  of  Purchaser? 
  1917. 

2   days'  notice  required  by  Pur- 
chaser before  apparatus  will  be  ready  for  in- 
spection or  tests?  1916. 

3.  Shall  inspections  or  tests  be  made  at  destina- 
tion by  Purchaser?    igi8. 

4.  Shall  record  of  inspection  and  tests  as  fur- 
nished by  Contractor  be  accepted?   

1919. 

(x)  Remarks   


1916. 

(y)  Signed    1916. 

(z)  Date    igi6. 


1 


-lat  BB  .183^  ^^q^^i         510091  IlBdS  .1. 


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91bCI  (s) 


I  Interlocking 
American  Railroad  Association.  Machine. 

r,  •      f  T->  •  •  •  Mechanical. 

Signal  Division,    Requisites. 

  1919. 


REQUISITES  FOR  MECHANICAL  INTERLOCKING 
MACHINE. 
1919. 

(Official  Approval  May,  1920.) 

1.  Machine  is  for    R.  R.,  to  be  located  at 

 on  inquiry  order  

requisition  dated   I9i9« 

2.  Machine  shall  be  in  accordance  with  A.R.A.  specifi- 
cation for  machine.  1919- 

{  vertical  ] 

3.  Machine    shall    be    arranged    for  |  horizontal  | 
leadout.  igiQ- 

4.  Machine  shall  have    working  levers 

  spare  levers    spare  space, 

total   19 19. 

5  two-position  levers. 

6  three-position  levers. 

7  -way   locking  brackets   shall   be  fur- 
nished. 1919- 

8  ,  -way  locking  bed  shall  be  furnished. 

1919. 

9.  Levers  Nos  shall  be  equipped  with  counter- 
weights of  pounds  to  assist  in  moving  to  the 

normal  position.  ^9^9- 

10.  Levers  Nos  shall  be  equipped  with  counter- 
weight of                       pounds  to  assist  in  moving  them 

to  the  reverse  position.  ^9^9' 

11.  Levers  shall  be  numbered  and  arranged  in  accord- 
ance with  track  and  signal  plan*  number   

dated   i9i9- 


*Track  and  signal  plan  should  have  all  main,  side  and 
auxiliary  tracks  properly  designated,  direction  of  traffic 
and  routing  of  signals  indicated.  ^9^9- 


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I  Interlocking 
American  Railroad  Association.  Machine. 

S.;n.I  Division.  stf  "a^^^'" 


SPECIFICATION  FOR  MECHANICAL  INTERLOCKING 
MACHINE,  IMPROVED  SAXBY  AND 
FARMER  LOCKING. 
1919. 

(Official  Approval  May,  1920.) 

1.  Requisite  sheet. 

(a)  Requisite  sheet,  section  14,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.        (S.  S.  4-a.)  1919. 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

2.  General. 

(a)  Levers  shall  be  numbered  from  left  to  right. 

1916. 

(b)  Track  and  signal  plan,  locking  and  dog  sheets  shall 
be  approved  by  the  Purchaser.  1919- 

(c)  Machine  legs,  bottom  girders,  lever  shoes,  quad- 
rants, top  plates,  rocker  links,  back,  front  and  inter- 
mediate rails,  end  blocks,  universal  links,  bearings,  end 
strips,  counter-weights  and  locking  brackets  shall  be 
made  of  cast  iron.  19 19. 

(d)  Latch  shoes,  latch  blocks,  latch  handles,  latch  nuts, 
combined  lever  number  and  foot  pla'tes,  drivers  for  end 
of  locking  shafts,  locking  shaft  drivers  for  longitudinal 
locking  bars,  bottom  girder  caps  and  driving  pieces  for 
longitudinal  locking  bars,  shall  be  made  of  malleable  iron. 

1919. 

(e)  Levers,  tail  levers,  latch  rods  and  locking  bracket 
caps  shall  be  made  of  open  hearth  steel.  1919- 

(f)  Locking  shafts,  longitudinal  locking  bars,  cross 
locking,  locking  dogs  and  stops,  driving  piece  blocks  and 
all  pins  shall  be  made  of  cold  drawn  steel.  1919. 

(g)  Swing  locking  dogs  shall  be  made  of  malleable  iron 
or  steel.  1919. 

(h)  Latch  springs  shall  be  made  of  spring  steel  wire. 

1919. 

(i)  Trunnions  shall  be  made  of  forged  steel.  1919. 
(j)  Machine  shall  consist  of  one,  four  and  eight-lever 

sections.  1919. 

(k)  On  machines  having  four  or  one-lever  sections,  the 
four-lever  section  shall  be  placed  on  the  right  hand  end  of 
the  machine;  one-lever  section  may  be  placed  on  either 
end  of  the  machine.  1919- 


'Farmer. 
Specification. 
1919. 


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2  Interlocking 

American  Railroad  Association.  Machine. 

„.      ,  ^ .  .  .  Mechanical. 
  ^'Snal  Division,   S^^by  and 

— — — ^  Parmer . 

Specification. 

General. — Continued.  1919. 

(1)  Levers  shall  be  spaced  five  (5)  inches  center  to  cen- 
ter. 1919- 

(m)  Height  of  machine  for  vertical  leadout  shall  be 
two  (2)  feet,  eight  and  one-eighth  (8^^)  inches  from  boit- 
tom  of  leg  to  finished  top  of  top  plate.  1919- 

(n)  Height  of  machine  for  horizontal  leadout  shall  be 
three  (3)  feet,  five  and  seven-eighths  (5%)  inches  from 
bottom  of  leg  to  finished  top  of  top  pla'te.  1919. 

(o)  Like  part  of  same  Manufacturer's  machine  shall  be 
interchangeable.  I9i9" 

(p)  Each  spare  space  shall  be  equipped  with  cap  and 
pin  for  lever  shoe.  1919- 

(q)  Bolts  and  screws  shall  have  U.  S.  standard  threads, 
unless  otherwise  specified.  1919- 

(r)  Nuts,  bolts  and  cap  screw  heads  shall  be  hexagonal, 
unless  otherwise  specified.  I9i9' 

(s)  Bolts  and  cap  screws,  except  for  locking  caps,  shall 
be  provided  with  spring  lock  washers  where  practicable. 

1919. 

(t)  Taper  dowel  pin  shall  be  No.  8  standard  Morse 
taper  two  (2)  inches  in  length.  1919- 

(u)  Straight  dowel  pins  shall  be  one-fourth  (^)  inch 
diameter.  1919- 

(v)  When  necessary  to  hold  parts  in  fixed  relation  to 
each  other,  dowel  pins  or  body-bound  bolts  shall  be  used. 

1919. 

(w)  Moving  parts  of;  machine  shall  work  freely,  with- 
out lost  motion.  1919- 

(x)  Machine  shall  be  painted  in  accordance  with 
R.  S.  A.  specificaition  for  shop  painting.  1919- 

(y)  All  parts  of  machines  shipped  knocked-down  shall 
be  marked  with  steel  figures  on  a  finished  surface  and 
given  the  numbers  which  they  take  in  the  assembled 
machine.  19  ^9- 

(z)  Locking  brackets,  cross  locking,  longitudinal  lock- 
ing and  swing  dogs  shall  be  marked  to  read  from  back  of 
machine.  Longitudinal  bars  shall  have  their  lever  num- 
bers marked  directly  over  their  drivers.  Swing  dogs  shall 
be  marked  with  lever  number  at  trunion  end  and  space 
number  at  nose  end.  I9i9- 
Machine  legs. 

(a)  Legs  for  vertical  leadout  machine  shall  be  two  (2) 
feet  seven  and  one-fourth  (7^)  inches  in  height  and  base 
of  leg  shall  be  provided  with  four  (4)  holes  for  three- 
fourths  (Ya)  inch  bolts.  IQIQ- 


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3  Interlocking 
American  Railroad  Association.  Machine. 

Signal  Division.  Mechanical. 

    Saxby  and 

Farmer. 

3.  Machine  /e^s.-Continued.  Specification. 

(b)  Legs  for  horizontal  leadout  machines  shall  be 
three  (3)  feet  five  (5)  inc*hes  in  height  and  base  of  leg 
shall  be  provided  with  four  (4)  holes  for  three-fourths 
inch  bolts.  1919. 

4.  Bottom  girders. 

(a)  Bottom  girders  shall  be  fastened  to  legs  with  two 
(2)  three-fourths  (34)  inch  thin  square-head  body-bound 
bolts.  1919- 

(b)  Caps  shall  be  fastened  to  bottom  girders  with  two 
(2)  one-half  (^)  inch  square-head  machine  bolts.  1919. 

5.  Top  plates. 

(a)  Top  plates  shall  be  fastened  to  machine  legs  with 
six  (6)  one-half  inch  T-head  bolts;  one  (i)  one-half 
(%)  inch  cap  screw  and  four  (4)  taper  dowel  pins. 

1919. 

(b)  End  strips  shall  be  fastened  to  top  plates  with  two 
(2)  one-half  (%)  inch  T-head  bolts.  1919. 


6.  Levers. 


(a)  Levers  shall  be  five  (5)  feet,  ten  and  one-eighth 
(loYs)  inches  from  center  of  fulcrum  to  end  of  handle. 

1911. 

(b)  Levers  shall  have  equal  and  uniform  throw  and 
shall  be  in  true  alignment.  1919. 

(c)  Tail  levers  shall  be  drilled  to  provide  eight  and 
three-fourths  (8%)  inch  stroke,  nine  and  three-fourths 
(934)  inch  stroke,  ten  and  three-fourths  (10^)  inch 
stroke  and  shall  be  interchangeable  as  front  or  back  tail 
levers.  I9i9« 

(d)  Lever  shoes  for  vertical  leadout  machine  shall  pro- 
vide approximately  equal  stroke  above  and  below  hori- 
zontal and  so  arranged  that  connection  can  be  made  to 
front  or  back  tail  lever.  1919- 

(e)  Two-position  levers  shall  be  designed  to  latch  in 
normal  and  reverse  positions.  1919- 

(f)  Three-position  levers  shall  be  designed  to  latch  in 
normal,  intermediate  and  reverse  positions.  i9i9' 

(g)  Levers  and  tail  levers  for  vertical  leadout  machine 
shall  fit  snugly  into  lever  shoe  and  be  fastened  thereto 
with  two  (2)  three-fourths  (34)  inch  body-bound  bolts 
and  one  (i)  taper  dowel  pin.  1919- 

(h)  Levers  for  horizontal  leadout  machine  shall  be 
fastened  to  lever  shoe  with  three  (3)  three-fourths  (34) 
inch  body-bound  bolts  and  one  (i)  taper  dowel  pin. 

1919. 


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4 

American  Railroad  Association. 
Signal  Division. 


Interlocking 
Machine. 
Mechanical. 
Saxby  and 


6.    Levers. — Continued. 


Farmer. 
Specification. 
1919. 


(i)  Lever  shoe  pins  shall  be  one  (i)  inch  diameter. 
End  pins  shall  be  held  in  place  by  one  (i)  three-eighths 
(%)  inch  square  head,  cupped  point  set  screw  through 


(j)  Latch  shoes  shall  provide  for  four  and  one-half 
inch  opening  for  latch  springs  and  be  provided  with 
an  adjusitable  bushing.  Top  lip  shall  extend  one  (i)  inch 
from  face  to  latch  shoe.  Latch  shoe  shall  be  fastened  to 
levers  with  two  (2)  one-half  (%)  inch  tap  bolts  and  one 
(i)  taper  dowel  pin,  the  hole  for  dowel  pin  to  be  located 
below  the  hole  for  the  lower  tap  bolt.  1919. 

(k)  Quadrants  shall  be  fastened  'to  top  plates  with 
three  (3)  one-half  (5^)  inch  bolts.  1919- 

(1)  Rocker  links  shall  be  fastened  to  quadrants  with 
one  (i)  one  (i)  inch  diameter  grooved  pin,  pin  to  be  held 
in  place  in  quadrant  with  one  (i)  three-eighths  inch 
by  five-eighths  (5^)  inch  cone  point  headless  set  screw. 


(m)  Latch  rods  shall  be  five-eighths  (^)  by  'twenty- 
four  and  three-fourths  (24^)  inches  from  end  of  block  to 
end  of  thread,  thread  to  be  S.  A.  E.  standard  (eighteen 
(18)  threads  to  the  inch)  two  and  one-fourth  (2%)  inches 
long  and  equipped  with  hexagon  check  nuts.  Trunnion  for 
latch  block  shall  be  equipped  with  one  (i)  one  and  one- 
half  inch  diameter  cut  washer  and  one  (i)  three-six- 
teenths (3/16)  inch  cotter  pin.  I9i9« 

(n)  Latch  nuts  shall  be  straight,  three  (3)  inches  long 
from  center  of  hole  to  end  of  nut  and  shall  be  tapped  two 
and  one-fourth  (2%)  inches  deep  with  an  S.  A.  E. 
standard  (eighteen  (18)  threads  toi  the  inch)  five-eighths 
(s/s)  inch  tap.  1919. 

(o)  Latch  springs  shall  be  eleven-sixteenths  (11/16) 
inch  inside  diameter  and  shall  be  of  sufficient  strength 
and  range  of  compression  to  operate  the  locking  bars 
when  the  lever  is  at  either  end  of  the  quadrant  and  the 
latch  is  free  to  drop,  and  so  designed)  that  the  additional 
compression  obtainable  by  the  adjustment  is  necessary 
only  in  machines  above  forty-four  (44)  levers.  1919. 

(p)  Latch  handles  shall  be  twelve  (12)  inches  from 
center  of  holes  to  end  of  handle  and  shall  be  connected  to 
lever  and  latch  rod  with  two  (2)  one-half  (%)  inch  round 
cheese-head  pins.  1919- 


girder  cap. 


1919. 


1919. 


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5  Interlocking 

American  Railroad  Association.  Machine. 

o .  Mechanical. 
 ^'Snal  Division.  

— ~"  ^  Farmer. 

Specification. 

6.  Levers. — Continued.  1919. 

(q)  Combined  foot  and  number  pla'tes  shall  be  fastened 
to  levers  with  one  (i)  one-half  inch  round  cheese- 

head  pin.  1919- 

(r)  Ufniversal  links  shall  be  five  and  three-fourths 
(534)  inches  center  to  center  and  connected  to  rocker 
links  with  one  (i)  one  (i)  inch  flat  swivel  pin  and  one  (i) 
one-half  (^^)  inch  round  cheese-head  pin.  1919- 

(s)  Link  blocks  shall  be  one  by  one  and  one-half  by  one 
and  one-eighth  (1  xi%x  1%)  inches  with  a  sliding  fit,  to 
have  lip  five-sixteenths  (5/16)  inch  thick  and  not  less  than 
five-sixteenths  (5/16)  inch  high.  1919- 

7.  Locking. 

(a)  Machine  shall  be  provided  with  mechanical  locking 
of  the  preliminary  type.  191 1. 

(b)  Machine  shall  be  fully  equipped  with  cross  locking 
brackets  and  bars,  and  locking  shafts  with  cranks  and 
drivers.  For  each  spare  lever  and  each  spare  lever  space 
one  longitudinal  locking  bar  shall  be  furnished  for  the 
full  length  of  the  machine.  1919- 

(c)  Locking  shall  be  distributed  as  uniformly  as  pos- 
sible without  crowding.  I9i9- 

(d)  Bearings  for  fronit,  back  and  intermediate  rails 
shall  be  fastened  to  machine  legs  with  four  (4)  one-half 
(^)  inch  bolts  and  two  (2)  taper  dowel  pins.  1919- 

(e)  Bearings  for  machines  having  locking  beds  twenty- 
four  (24)  way  or  wider  shall  be  provided  with  adjustable 
supports.  I9I9' 

(f)  Front  and  back  rails  shall  be  interchangeable  and 
fastened  to  bearing  with  one-half  (Yz)  inch  cap  screws 
and  two  (2)  straight  dowel  pins.  1919- 

(g)  Intermediate  rails  shall  be  wide  enough  to  accom- 
modate two  (2)  standard  locking  brackets.  1919- 

(h)  Front,  back  and  intermediate  rails  shall  be  pro- 
vided with  one-way  caps,  and  caps  shall  be  fastened  to 
rails  with  two  (2)  three-eighths  (Ys)  inch  cap  screws. 

1919. 

(i)  End  blocks  shall  be  fastened  to  rails  with  one  (i) 
three-eighths  (Ys)  inch  cap  screw.  1919- 

(j)  Ends  of  locking  shaft  shall  be  square  and  have  like 
dimensions.  I9i4' 

(k)  Drivers  for  end  of  locking  shafts  to  be  open  ap- 
proximately one-eighth  (Ys)  inch  on  back  end  to  allow  for 
tight  clamping,  to  be  fastened  with  one  (i)  one-half  (Y2) 
inch  body-bound  bolt  through  shaft  and  connected  to  uni- 
versal link  with  one  (i)  one-half  (Y2)  inch  round  cheese- 
head  pin.  1919. 


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"  ...  .ftiq  bs9d 


6  Interlocking 
American  Railroad  Association.  Machine. 

Signal  Division.  Mechanical. 

 —  ^   Saxby  and 

Farmer. 

Lociuiig^.— Continued.  Specification, 

(1)  Drivers  for  longitudinal  locking  bars  shall  be  of 
the  clamp  type  with  filler  blocks  and  fastened  to  locking 
shafts  with  one  (i)  five-eighths  (s/^)  inch  finished  bolt 
and  nut  through  block  and  end  driver.  igig. 

(m)  Four,  eight  and  twelve-way  locking  brackets  only 
shall  be  used.  Four-way  brackets  shall  not  be  used  in 
combination  with  eight  and  twelve-way  brackets.  1919. 

(n)  Locking  brackets  shall  be  machined  out  for  longi- 
tudinal bars  to  a  depth  of  one  and  thirty-seven  sixty- 
fourths  (i  37/64)  inch  below  finished  top  of  bracket  and 
shall  be  one  and  one-sixteenth  (i  1/16)  inch  wide  and  for 
cross  locking  bars  to  a  depth  of  twenty-five  thirty-seconds 
(25/32)  inch  by  forty-nine  sixty-fourths  (49/64)  inch 
wide.  Two  (2)  thirteen  thirty-seconds  (13/32)  inch  holes 
and  one  (i)  hole  for  one  (i)  straight  dowel  pin  shall  be 
drilled  with  jig  through  each  end  of  bracket  and  brackets 
shall  be  fastened  to  rails  with  four  (4)  three-eighths 
inch  cap  screws  and  two  (2)  straight  dowel  pins.  1919. 

(o)  Longitudinal  locking  bars  shall  have  one  and  three- 
fourths  (134)  inch  stroke  and  shall  be  provided  with  stops 
for  normal  and  reverse  positions  of  the  bar.  The  stop 
shall  be  of  one-half  by  one-half  (5^  x  i^)  inch  cold  drawn 
steel  and  shall  be  located  on  the  under  side  of  longi- 
tudinal locking  bar.  igig. 

(p)  Splices  in  longitudinal  locking  bars  shall  be  made 
by  means  of  two  (2)  channel  clamps  fastened  with  two 
(2)  one-fourth  (%)  inch  bolts  having  nuts  and  cotters. 
Bars  in  smaller  than  forty  (40)  lever  machine  frame 
shall  not  be  spliced.  1919. 

(q)  Trunnions  for  swing  dogs  shall  he  reversible  with 
one-fourth  (^)  inch  diameter  by  one-eighth  (%)  inch 
high  round  dowel  and  shall  be  provided  with  washers  and 
cotters.  igig, 

(r)  Swing  dogs  shall  be  reversible  three-eighths  (Ys) 
inch  high  by  one-half  (%)  inch  wide.  igig. 

(s)  Straight  locking  dogs  shall  be  drilled  so  that  a  nor- 
mal drive  dog  may  be  madq  a  reverse  dog  by  turning  it 
end  for  end,  a  reverse  dog  made  a  normal  dog  in  the 
same  manner,  and  a  double  end  dog  made  to  take  the  place 
of  either  a  normal  or  reverse  dog.  Holes  for  rivet  heads 
shall  be  counter  bored  to  eleven  thirty-seconds  (11/32) 
inch  diameter  and  to  a  depth  of  three  thirty-seconds 
(3/32)  inch  on  both  sides  of  the  dog.  igig. 


ric>l'»ol'iotiil 


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nod  fosrf3inft  doiii  <8\a)  erijriaia-^^i^        ^no  rilrw  ansda 

ai  bi»8«  ad  Jon  riBrfa  aH:^JBt(i  t^vf-iwCiJ  ad  Il&ri^ 

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bns  i^-i'^Btd  lo  qot  banaina  wolad  doxii  (^aX^.  0  af^i-^^'"-'^ 
lolt  bns  9bivr  doni  (di\i  i)  dtM91x^^^^no  has  ano  sd  IlBria 

r!-^      (^3\o^)   sdnuol-V^lz  anin-^^nol  ^^d  dam  (s^ 
?Mod  ii;.rir(££\£i)  abnoose-viidi  n^aiiidi  (s)  owT  .abiw 
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ajsiostd  bns  is±^Bid  'io  baci  d^sa  riSiJOidi  ^Ji.  rit£w  ballnb 
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-iQFOi       abia  labao  ^dl  m  balsool  ad  ilBd«  bas  laaia 

.led  sfiHooi  iBnibiiJ 

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haB       ■■  ■  ■'""^  (M)  di-moi-ano  (&) 

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.aialJoo 

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ii   ■  xd  sob  aaiavai  b  «9bBm  ad  ^Bm  lob  avhb  Ibxh 

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abBari  Javh  lolt  aaioH  .gob  aai^vai  lo  Ifimion  b  ladjia  'io 
(££\ix)  abnoo9B~pj'tdi  navala  o*  baiod  lainuoa  ad  U&di 
gbnoaa«-v^T-^^    >  '^^        rf^*?^^  lalanifiib  ibn, 

gj^i  ,ob  adt  io  adbia  died  no  riani  (se^e) 


7  Interlocking 
American  Railroad  Association,  Machine. 

 ^'^"^   Saxb™- 

'        '~  ~  Parmer. 

T     1  •        ^  1  Specification. 

7.  Locking. — Continued.  19J9. 

(t)  Locking  drivers,  dogs  and  stops  shall  be  fastened 
to  the  longitudinal  bars  with  two  (2)  one-fourth  (54)  inch 
fillister  head  rivets  and  one  (i)  straight  dowel  pin. 
Swing  dog  trunnions  shall  be  fas'tened  to  the  longitudinal 
bars  with  two  (2)  one-fourth  (%)  inch  fillister  head 
rivets.  1919. 

(u)  Latch  blocks  in  locked  combinations  shall  not  have 
a  lift  of  more  than  three-sixteenths  (3/16)  inch.  1919. 

8.  Material  and  workmanship. 

(a)  Material  and  workmanship  shall  be  first-class  in 
every  respect.  (S.  S.  5-a.)    191 1. 

9.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defective 
material.    The  Contractor  shall  pay  all  freight  charges. 

(S.  S.  6-c.)  1919. 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)    191 7. 

10.  Tests. 

(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 

(c)  Contractor  shall  provide  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 

11.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919. 

12.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor,  and  name  and  address  of  Consignee, 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 


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^vsii*!^^..  ^-v:>  ..'.ii-jv;  u  aaiaold  doiBd  (u) 

m  -^^lib       :  -^id  il&dB  qtdzv  -^nB  ffiiiatfiM  (b;^ 

..net    (.r.-e,.a.3)  .,tD.^qeat  yi^v. 

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.21QX    (.s^d  .a  .2)  .9iuJDs'*on£m 
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^-.^Afl  noxlsoabaqs  sidit  lo  a^ns»m^V.  ■  ^  •  i>mmi(>i  '>h 

.^iQi    <.d~d      .3)  Jam  na^.i 

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avis   Iliiila   lolafiUnoD  (d) 
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.Qigi    (.d-v  .8  ,8) 
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lahjtu  fJiP-st  baiiup"^      '  '  !?'ij^JBfn  loi  igdsl  foiiB  aulBiBqqB 
r  ■>    r.^.v  -8  ^  iaaBrioiw<i  ad*  lo  itoiaiviaqus 

,9ansxanoD  lo  aaaibbs  bnB  ^lon^ianoD  lo  amBO 


.igSJloBq  lo 


8  Interlocking 

American  Railroad  Association.  Machine. 

„ .  Mechanical. 
 ^'Snal  Division,  Saxby  and 

'  — —   ~~~  ^  Farmer. 

Specification. 

12.  Marking. — Continued.  1919. 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents,  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  g-b.)  igig. 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  g-c.)  igig. 

13.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
-  of  so  as  to,  in  the  Contractor's  judgment,  affect  its  proper 
functioning  or  reliability  nor  which  has  been  subject  to 
misuse,  negligence  or  accident.        (S.  S.  lo-a.)  igig. 

14.  Requisites  for  mechanical  interlocking  machine,  A.  R.  A.  speciA- 

cation. 

(a)  Machine  is  for   R.  R.  to  be  located 

at  on  inquiry  order  

requisition   dated    igig* 

(b)  Machine  shall  be  in  accordance  with  A.  R.  A.  speci- 
fication for  machine.  igig- 

(  vertical  ] 

(c)  Machine  shall  be  arranged  for  ^  horizontal  j  1®^^" 

out.  igig. 

(d)  Machine  shall  have    working  levers, 

 spare  levers,  spare  spaces, 

total   igig- 

(e)   two-position  levers.  igig- 

(f)   three-position  levers.  igig- 

(g)   -way  locking  brackets  shall  be  fur- 
nished, igig- 

(h)   -way  locking  bed  shall  be  furnished, 

igig. 

(i)  Levers  Nos   shall  be  equipped  with 

counterweights  of  pounds  to  assist  in  moving 

them  to  the  normal  position.  igig- 

(j)  Levers  Nos  shall  be  equipped  with  coun- 
terweight of  pounds  to  assist  in  moving  them 

to  the  reverse  position.  igig. 


:>  'id/.JiJ**<     ^   i  ^  

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madJ  snivom  ni  iaiaaB  oJ  sbiuioq  - «  id^giawtaJ 

.fie  I 


9  Interlocking 
American  Railroad  Association.  Machine. 

ci-      T  T-k  •  •  •  Mechanical. 
 ^'Snal  Division.  

Farmer. 
Specification. 

14.    Requisites  for  mechanical  interlocking  machine,  A.  R.  A.  speciti-  1919. 
cation. — Continued. 

(k)  Levers  shall  be  numbered  and  arranged  in  accord- 
ance with  track  and  signal  plan*  number  , 

dated   1919- 

(x)  Remarks   

  1916. 

(y)  Signed    1916. 

(z)  Date    19 16. 


*Track  and  signal  plan  should  have  all  main,  side  and  auxiliary 
tracks  properly  designated,  direction  of  traffic  and  routing  of  signals 
indicated.  i9i9' 


ban  ^i^/H^i  ^  — .   •• — - —  

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.b^lB^ibni 


I  Interlocking 
American  Railroad  Association,  Machine. 

Signal  Division.  ISation. 

  1919. 


SPECIFICATION  FOR  POWER  INTERLOCKING  MACHINE. 

1919. 

(Official  Approval  May,  1920.) 

1.  Requisite  sheet. 

(a)  Requisite  sheet,  section  23,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.         (S.  S.  4-a.)  1919. 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

2.  Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor 
wishes  to  vary  from  the  specification,  a  tender  may  be 
submitted  covering  the  apparatus  he  desires  to  furnish. 
This  tender  shall  be  accompanied  by  full  information 
showing  wherein  the  requirements  of  the  specification 
are  varied  from.  (S.  S.  3-a.)  1919. 

3.  Drawings. 

(a)  Purchaser's  drawings  accompanying  this  specifica- 
tion and  forming  an  essential  part  thereof,  are  as  follows: 


(S.  S.  2-a.)  1919. 
(b)  Track  and  signal  plan,  locking  and  dog  sheet  and 
combination  wiring  plan  shall  be  approved  by  the  Pur- 
chaser. iQiQ* 

General. 

(a)  Bolts  and  screws  shall  have  U.  S.  standard  thread 
where  practicable.  1919- 

(b)  Nuts,  bolts  and  cap  screw  heads  shall  be  hexagonal, 
unless  otherwise  specified.  1919- 

(c)  Bolts  and  cap  screws  shall  be  provided  with  spring 
lock  washers  where  practicable.  1919- 

(d)  Taper  dowel  pins  shall  be  standard  taper  one- 
fourth  (%)  inch  per  foot.  1919- 

(e)  When  r^ecessary  to  hold  parts  in  fixed  relation  to 
each  other,  dowel  pins  or  body-bound  bolts  shall  be  used. 

1919. 

Design. 

(a)  The  machine  frame  and  locking  bed  shall  be  so  de- 
signed that  additional  sections  may  be  added  on  either 
end.  1919- 

(b)  Like  parts  of  the  same  manufacturer's  machine 
shall  be  interchangeable.  1919- 


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•  fToO  arb  ^9Jfi*K  dDfxuiaiaiq  on  bne  bsiJlxiiieq  ai  noilqo 

•■31  arfj  ^nh93m  aixi&i^ciqi  -lol  ad  IIbHb 

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.daioiwl  ot  ' :  ir-^-^}  sd  amBisqqB  sd*  gniisvoo  baJJimdua 
noii&mio'i:  ^  bainBqmooDB  ad  IlBrfa  labna*  siriT 

nobfioftl'J-  ^    ?  :   : -niopai.  adJ  nbiariw  ^mworfa 

Ql3B  3ib  iBq  iBhiiagea  ns  smimo^  bns  nc 


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3VGiqqi8  ad  Usda  jnfilq  snhiw  nohfirtidmoD 

,ias£da 


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-ano  laqfij  biBbnfils  ad  Ilfiria  aniq  lawob  laqsT  (b) 

.giQi  Jool  laq  doni  ($^0  rinuoi 

oj  nohBlai  baxft  ni  aJisq  blod  ot  nariW  (a) 

baau  ad  Ifsda  atlod  bntiod-'^bod  lo  aniq  lawoh  ,iariJo  daaa 

-ab  oa  ad          b^-u  ^^^^>IJoi  bn£  amBil  sii^-  n..,.^.  v..^. 
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->'r??^.  !r^  s*i3-rat3B^rtBm  arrtfta  adl  io  al-»Bq  aiiJ  (d) 


2  Interlocking 
American  Railroad  Association.  Machine. 

Signal  Division.  1^"%' 
  Specification. 

 ■  1919. 


6.  Locking. 

(a)  Machine  shall  be  provided  with  mechanical  locking 
of  the  preliminary  type.  igii. 

(b)  For  each  spare  lever  and  each  spare  space,  pro- 
visions shall  be  made  in  the  locking  bed  to  accommodate 
either: 

1.  One  (i)  locking  shaft  with  one  (i)  cross  lock- 
ing bar  and  one  (i)  longitudinal  locking  bar  for  the 
full  length  oi  the  machine.  iQiQ. 

2.  One  (i)  tappet  with  one  (i)  longitudinal  lock- 
ing bar  for  the  full  length  of  the  machine.  1919. 

(c)  The  machine  shall  be  equipped  complete  with  lock- 
ing guides  or  brackets,  1919. 

(d)  Locking  shall  be  distributed  as  uniformly  as  pos- 
sible without  crowding  and  so  arranged  as  to  be  easily 
accessible.  iQiQ* 


7.  Levers. 


(a)  Levers  shall  be  numbered  from  left  to  right,  in  ac- 
cordance with  requisite  sheet.  1919- 

(b)  Levers  shall  be  arranged  so  they  can  be  removed 
without  interfering  with  the  operation  of  other  levers. 

1919. 

(c)  Spare  levers  shall  be  furnished  in  place  complete 
with  magniets,  standard  circuit  controllers,  locking  shaft 
and  driver,  or  tappet,  and  connections  and  tappet  com- 
plete for  the  operation  and  control  of  their  respective 
units.  1919- 

(d)  Two-position  levers  shall  be  designed  to  latch  in 
the  reverse  position  and  in  addition  all  levers,  except 
those  of  the  horizontal  slide  type,  to  latch  in  the  normal 
position.  1919. 

(e)  Three-position  levers  shall  be  designed  to  latch  in 
the  normal,  intermediate  and  reverse  positions.  1919. 

(f)  Levers  shall  be  designed  to  permit  the  application 
of  electric  locks  or  mechanically  operated  time  releases, 
independent  of  indication  locks.  1919- 


8.  Case, 


(a)  Machine  shall  be  enclosed  in  a  case,  which  shall 
have  separate  removable  doors  or  panels  of  convenient 
size  to  give  access  to  all  parts  of  the  machine,  and  shall 
be  provided  with  locks  as  specified  on  requisite  sheet. 

1919. 

Painting. 

(a)  Painting  of  the  machine  shall  be  in  accordance 
with  R.  S.  A.  specification  for  shop  painting.  1919- 


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.^igi       .'imdQBm  9dl  \o  di^nal  Hui  ^dl  loi  isd  gnl 

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Isfmor  fB**ioxiibd  adl  aaorft 

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p}.;  !     .gtiohiacq  daiavai  bns  atisibsmialni  Jsmion  ^x-it 

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IlBiia  bnB  ,amdoBxn  adt  io  aJiBq  ils  ot  aaaoos  avig  ol  asia 
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aonsbioooB  ni  ad  ilfirfa  anidaBm  arfJ  io  sniints*!  (b) 


,%VvB'0  .8 


3 

American  Railroad  Association. 
Signal  Division, 

 —  —  jQjg 

10.  Dielectric  requirements. 

(a)  Unless  otherwise  specified,  electric  apparatus  as- 
sembled shall  withstand  an  insulation  test,  at  place  of 
manufacture,  of  three  thousand  (3000)  volts  a.c.  between 
all  parts  of  electric  circuits  and  other  metallic  parts  insu- 
lated therefrom.  (G.  E.  R.  30-a.)  1919. 

(b)  A  surface  leakage  distance  of  not  less  than  one- 
fourth  (%)  inch  shall  be  provided  between  any  exposed 
metallic  part  of  the  apparatus  carrying  current  and  any 
other  metallic  part  thereof.         (G.  E.  R.  30-b.)  1919. 

(c)  Separate  windings,  which  are  insulated  from  each 
other,  shall  withstand  for  one  (i)  minute  an  insulation 
test  of  three  thousand  (3000)  volts  a.c.  between  their  ter- 
minals. (G.  E.  R.  30-C.)  1919. 

(d)  A  potential  of  twice  the  normal  operating  require- 
ments at  a  suitable  frequency  shall  be  impressed  across 
the  windings  without  any  excessive  flow  of  current  indi- 
cating a  short  circuit.  (G.  E.  R.  30-d.)  i9i9' 

11.  Insulation. 

(a)  Coils  and  windings  shall  be  of  cotton  or  silk- 
covered  wire,  impregnated;  of  enameled  wire,  or  as 
shown  on  requisite  sheet.  Enameling  or  impregnation, 
shall  be  in  accordance  with  R.  S.  A.  specifications. 

(G.  E.  R.  32-a.)  1919- 

(b)  Material  used  for  insulation  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 

(G.  E.  R.  32-b.)  1917. 

12.  Circuit  controllers. 

(a)  Machine  shall  be  equipped  with  Manufacturer's 
standard  circuit  controllers  necessary  for  the  control  of 
the  circuits  shown  on  drawings  listed  on  requisite  sheet. 

1919. 

13.  Indication. 

(a)  Levers  for  the  control  of  switches,  derails,  movable 
frogs,  crossing  bars,  drawbridge  locks  and  bolt  locks 
shall  be  equipped  with  devices  to  insure  the  locking  of 
the  units  in  a  position  corresponding  to  the  position  of 
the  levers  before  the  release  of  the  mechanical  locking 
can  be  effected.  1919- 

(b)  Levers  for  the  control  of  signals  shall  be  equipped 
with  devices  to  prevent  the  release  of  the  mechanical 
locking  until  the  signals  directly  or  indirectly  controlled 
have  assumed  their  normal  position.  1919- 

(c)  Switch  levers  shall  be  free  to  move  between,  their 
indicating  positions.  1919- 


Interlocking 
Machine. 
Power. 
Specification. 


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4  Interlocking 
American  Railroad  Association,  Machine. 

Signal  Division.  ^. 

Specification. 
~"   1919. 


14.  Terminal  board. 

(a)  Machine  shall  be  provided  with  a  terminal  board, 
constructed  from  insulating  material,  and  provided  with 
terminals  as  specified  on  requisite  sheet.  1919. 

15.  Lever  light  indicators, 

(a)  Lever  light  indicators  shall  be  of  the  type  speci- 
fied on  requisite  sheet.  1919. 

(b)  Lever  light  indicators,  when  required,  shall  be  lo- 
cated in  front  of  the  machine  immediately  above  or  be- 
low the  levers.  1919. 

(c)  Electric  lamps  for  lever  light  indicators  shall  be  as 
specified  on  requisite  sheet.  1919. 

16.  Contacts, 

(a)  Contact  springs  shall  be  made  of  highly  non-cor- 
rosive material  of  sufficient  mechanical  strength  and  cur- 
rent carrying  capacity  to  satisfactorily  operate  in  con- 
nection with  the  circuits  used.  1919. 

17.  Material  and  workmanship. 

(a)  Material  and  workmanship  shall  be  first-class  in 
every  respect.  (S.  S.  5-a.)    191 1. 

18.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.  (S.  S.  6-b.)  1919. 

(c)  If  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defec- 
tive material.  The  Contractor  shall  pay  all  freight 
charges.  (S.  S.  6-c.)  1919. 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1919. 

19.  Tests. 

(a)  Tests  may  be  made  at  point  of  production  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 


"^'f .l^aria  3.iaiirp.i  no  baft 


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5  Interlocking 
American  Railroad  Association.  Machine. 
Signal  Division.  Power, 

 Specification. 

1919. 


20.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919. 

21.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor,  and  name  and  address  of  Consignee, 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents,  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.)  1919. 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  9-c.)  1919. 

22.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  inj  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of so  as  to,  in  the  Contractor's  judgment,  affect  its  proper 
functioning  or  reliability,  nor  which  has  been  subject  to 
misuse,  negligence  or  accident.         (S.  S.  lo-a.)  1919. 

23.  Requisites  for  power  interlocking  machine,  A.R.A.  speciHcation. 

(a)  Machine  is  for   R.  R. 

I'  Location   

I  Inquiry  No  

■\  Order  No   . 

Requisition   

dated   

(b)  Machine  shall  be  in  accordance  with  R.  S.  A.  speci- 
fication. 1919. 

(c)  Purchaser  will  fill  in  such  items  as  he  desires  to 
specify.  Contractor  will  fill  in  all  other  blanks,  so  that 
the  requisite  sheet  will  be  complete  when  finally  sub- 
mitted with  Contractor's  quotations.  1919- 

(d)  Levers  shall  be  numbered  and  arranged  in  accord- 
ance with  track  and  signal  plan   ,  dated 

 •   1919- 

(e)  Machine  shall  be  as  shown  on  Contractor's  general 

drawing   ,   dated   ,  or 

catalogue  reference   I9i9« 


1919. 


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7. -J  ^  uajiib  ........ 


5  Interlocking 
American  Railroad  Association.  Machine. 

Signal  Division,  Specification, 
  jjjjQ^ 


23.    Requisites  for  power  interlocking  machine. — Continued. 

(f)  *Upon  the  completion  of  the  work  called  for  by 
this  specification,  the  following  Contractor's  drawings 
shall  become  the  property  of  the  Purchaser: 

1.  Track  and  location  plan  

2.  Locking  sheet   

3.  Dog  chart   

4.  Combination  wiring   

5.  Manipulation  chart   

6.  Track  diagram   

7.  Cable  and  wiring  plans   

1919. 

(g)  Levers: 

Lever  frame: 


Working  levers,  Signal 
Switch 


Spare  levers,  Signal 
Switch 


Spare  spaces 


Total 


1919. 


(h)  Machine  shall  be  designed  for  the  control  of  cir- 
cuits the  maximum  voltage  of  which  will  be  

r  direct    1 


volts 


1    cycles  alternating 

where  special  requirements  are  to  be  met 
amperes. 


current,  and 


1919. 


(i)  Electric  locks  together  with  normally  open  circuit 
controllers  in  addition  to  the  indication  locks  (magnets), 
section  locking, 
approach  locking, 
check  locking. 
  locking. 

1919. 


shall  be  provided  for 


*Indicate  by  X  in  column  whether  tracing  or  print  is  to  be  fur- 
nished. 


d 


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7  Interlocking 
American  Railroad  Association.  Machine. 

Signal  Division.   SpTcmcation. 

  1919. 


23.    Requisites  for  power  interlocking  machine. — Continued. 

(j)  Electric  lock  magnets  shall  be  arranged  for  normal 


direct 


operation  at    volts  ^    I 

[    cycles,  alternating  J 

current.  191 9- 

r  electric  light  ^ 

(k)  Lever  indicators  shall  be  of  the  J    I 

I  J 

type  for  normal  operation  at    volts 

[  direct    ] 


alternating 


current. 

1919. 

[  carbon 

(1)  Lever  indicator  lamps  shall  be  ■{   


arbon  "] 

filament  for  normal  operation  at   volts 

r  direct    ] 


current,  with 


base  and  bulb.  iQiQ- 

(  shall  ] 

(m)  Levers  controlling  switches  and  derails  |  gj^^u  j^q^  | 
be  provided  with  lever  indicators.  1919. 

(  shall  ] 

(n)  Levers  controlling  signals  j  gj^^^  ^ot  | 
vided  with  lever  indicators.  1919- 

(o)  Auxiliary  circuit  controllers  of  the 
[  spring  ^ 

-j    ^  type  shall  be  provided  for  the  fol- 

[  mechanical  stick  J 

lowing  levers  and  shall  have  

contacts.  1919- 

(p)  Automatic  time  release  providing  

seconds  retardation  in  lever  movement  shall  be  provided 
for  the  following  levers   I9i9' 

(q)  Insulation  of  coils  and  windings,  if  not  enameled 
wire,  or  fabric  covered  wire  impregnated,  shall  be  as  fol- 
lows   


1919. 


of,nt-)rti->oqH  ~  


J-   ,  iomib 


tjr^iiuo      '   I 


;  ,  .  .  ,  *33iib  ] 

'  I  slisi'jb  bn£  asrfjliwa  sniiloiiaoo  aiav^J  (m) 

^       "^^^  '  p  n  ;  >f&ai  i3V9[  dUw  fosbivoiq  3d 

i^is  awfiil  (n) 

inoijsDibm  ritiw  babiv 


.  _  _  ,       V3 1  sniwol 

^iJiibivoiq  saeal^i  amy  aiismoiaA  (q) 

b.I.nxBn.  ion  li  .aimbniw  bn.  alio, 


8  Interlocking 
American  Railroad  Association.  Machine, 
o  •      f  T-i  •  •  •  Power. 
Signal  Division.  Specification. 

 —   J9jg 

23.    Requisites  for  power  interlocking  machine. — Continued, 
(r)  Case: 

r  steel,  enamel  ] 
Case  shall  be  of  I  wood    \  finish  and 


Purchaser's  standard  ^ 


J 


equipped  with  |  cabinet    ^  locks 

1919. 

(s)  Terminal  board  shall  be  constructed  of  

 material  and  shall  be  provided  with  terminals 

I  R.  S.  A.  1070  j  ,|q J.  jjjg^j^^jjg,  ^Qj^nections  to  the  machine. 

1919. 

(t)  Inspection  and  tests: 

1.  Inspections  and  tests  j  "^^Jj        }  be  made  at 

point  of  production-  under  supervision  of  Purchaser. 

1919. 

2.  Purchaser  requires   days'  notice 

before  apparatus  will  be  ready  for  inspection  and 
tests.  1919- 

{  shall        ]  ^        ^  ^ 

3.  Inspection  or  tests     ^j^^jj        ^  be  made  at 

destination  by  Purchaser.  I9i9- 

4.  Inspection   or   tests   as  made   by  Contractor 
j  shall 

I 


shall  not  (       acceptable.  1919. 


(x)  Remarks   

  1916. 

(y)  Signed   1916. 

(z)  Date    1916. 


bfi£  - 


 Jo  b»*Dir?i«noD  i  iRnirm-' 

Tn>1  riitw  bdblvoiq  «d  Uin.^  i-->.s  idnsism  .. 

.  \  rroT   A  .8  .51  / 

a)S9l  bos  not}d9q«al 

)  lor. 


I  Petrolatum 
American  Railroad  Association.  ^^s^  in 

SignaJ  Division.  M*''""^ 


Bonds. 
Specification. 
1919. 


SPECIFICATION  FOR  PETROLATUM  FOR  USE  IN 
IMPEDANCE  BONDS. 
1919. 

(Official  Approval  May,  1920.) 

1.  Requisite  sheet. 

(a)  Requisite  sheet,  section  7,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.         (S.  S.  4-a.)  1919- 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

2.  Material. 

(a)  Shall  be  a  pure  mineral  oil,  free  from  crystalline 
wax,  acid,  alkali,  or  other  chemicals.  1919- 

(b)  It  shall  conform  to  the  following  physical  charac- 
teristics : 

1.  The  specific  gravity  shall  be  betv/een  twenty- 
seven  (27)  degrees  Baume  eight  hundred  ninety-one 
thousandths  (.891)  and  thirty  (30)  degrees  Baume 
eight  hundred  seventy-five  thousandths  (.875). 

2.  The  flash  shall  be  not  less  than  two  hundred 
forty-six  (246)  degrees  C.  (474°  F.). 

3.  The  viscosity  at  ninety-nine  (99)  degrees  shall 
be  between  one  hundred  and  five  (105)  sec.  and  one 
hundred  and  twenty  (120)  sec.  taken  in  a  Saybolt 
Standard  Universal  Viscosimeter. 

4.  The  melting  point  shall  be  between  forty-nine 
(49)  degrees  C.  and  fifty-seven  (57)  degrees  C.  taken 
by  the  Saybolt  method. 

5.  The  solidif>-ing  point  shall  be  between  forty- 
nine  (49)  degrees  C.  (120°  F.)  and  fifty-seven  (57) 
degrees  C.  (135°  F-)  ^9^9- 

3.  Inspection. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.  (S.  S.  6-b.)  1919- 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defective 
material.    The  Contractor  shall  pay  all  freight  charges. 

(S.  S.  6-c.)  1919. 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1917- 


^     ,8avioa  aD£4AaaqMi 

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IB  9i9rfw  lo  .bslia  naad  Jon  svBri  arfneld  j>i9rfW  (d) 
■noD  ddi  ,b3iB*2  3Dn9i5i9iq  o^r  bnR  bsnian^q  ai  noilqo 

.giQi    (,d-^  .3  .8) 

io  iBianim  a'luq  b  ad  ilsdg  (s) 

.glBDimsriD  13dtO  "!0  ,iI&3flB  ^i06  ,XBW 

.   ,     ,  ^.„.,    S^liT  .1 

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Jon  3d  li&dz  dzsR  ^riT  ,£ 
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Jt^i^mhooar'  nil  bisbrtBiS 

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-^Jiol  naswisd  ad  lliiria  imoq  gnix'xibtiog  sdT  .e 

;rboiq  b:  arft  toaqam  tjBm  imBdotiH  (d) 

.QiQi    (.d  d  a  .8)  Jam  nsad 

lo  inioq  hb  bsjqa^DB  naad  ton  sad  iBh^l&m  adi  (3) 
ion  saob  ti  ^noBsnhsab  Jb  iBviiiB  noqu  .ii  bns  ^noHowboiq 
-91  tjd  '^BOi  li  .nohBoRh^qB  airij      gjnamaiiupai  drb  Jasm 
sidt  s»glvbs  IfBrfa  ,?a9wpdi  xioqjf  ,iojos^jno3  ariJ  bnB  bslDs't 
^vitDaisb  adt      absm  sd  oi  ai  nohigoq^lb  Jfidw  i38BriDiii<I 

.33§iBdo  id-sbil  lOt^B-itnoD  adT  Jsha^Bm 

B  noijaaqsrti  3»Bm  oi  ai  laaBdoiu*!  II  (b) 

.!S5<fgt.?  03  9d  HBris  li  ,noiJynb 


2  Petrolatmn 
American  Railroad  Association.  Use  in 

Signal  Division.  S^S^"""^ 


Tests. 


Bonds. 
Specification. 
1919. 


(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 

(c)  Contactor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 

5.  Marking, 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor,  and  name  and  address  of  Consignee, 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents,  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.)  1919- 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  9-c.)  1919. 

6.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919- 

7.  Requisites  for  petrolatum  for  use  in  impedance  bond,  A.  R.  A. 

speciBcation. 

(a)  Purchaser  to  fill  in  such  items  as  he  desires  to 
specify.  Contractor  to  fill  in  all  other  blanks,  so  that  the 
requisite  sheet  will  be  complete  when  finally  submitted 
with  Contractor's  quotation,  1919- 

(b)  Identification. 

Petrolatum  covered  hy  this  sheet  is  for  

Railroad  on  Inquiry    Order   

Requisition  and  is  to  be  used  for  

at   I9I9- 

(c)  Quantity  required    1917- 

(d)  Shall  be  shipped  in  containers: 

1.  Steel  drums   gallons  capacity. 

2.  Wood  barrels   gallons  capacity. 

3   gallons  capacity. 

1919. 


^^^b  tr,  absm  ad  oafs  ^sm  bne  ,6attimdu«  ediqmt.-. 

azBiiDirr*!  aril  lo  noiaiviaqu?. 
.ditiun  9SB3l:>Bq  fciiB  nohiaiupai  .labio  a'la^Bfloiw^  (b) 


ia  ad  Ilfiris  no 


foiBqaiq  oa  ad  IlBrir. 


aft  narlw  aia 


IaaJ2  .1 


Petrolatum 
For  Use  in 

,  .  Impedance 
Signal  Division.  Bonds. 


3 

American  Railroad  Association. 


Specification. 
1919. 


7.    Requisites  for  petrolatum  for  use  in  impedance  bond,  A.  R.  A. 
speciBcation. — Continued. 

(e)  Inspection  and  tests. 

1.  Shall  inspection  or  tests  be  made  at  point  of 

production  under  supervision  of  Purchaser?   

  1917- 

2   days  notice  required  by  Pur- 
chaser before  apparatus  will  be  ready  for  inspec- 
tion or  test.  1916. 

3.  Shall  inspection  or  test  be  made  at  destination 
by  Purchaser?   1918. 

4.  Shall  record  of  inspection  and  tests  as  fur- 
nished by  Contractor  be  accepted?  

1919. 

(x)  Remarks   

  1916, 

(y)  Signed    1916. 

(z)  Date    1916. 


I 


Mint 


has  noiiasq-rT 

  *?i9aBri^i0<I  io  jjot«ivi»q«2  tsbnis  noii^uboiq 

-tiQi  

'iii^        Bditupa^  sohon  ?.^nb   ............  .& 


American  Railroad  Association. 
Signal  Division. 


Phrases  and 
Words. 

1919. 


PHRASES  AND  WORDS. 
1919. 

(Official  Approval  May,  1929.) 

(a)  Use  the  phrases: 

1.  In  accordance  with.  ^9^9' 

2.  Conform  to.  iQiQ* 

(b)  Use  the  words: 

1.  May,  in  optional  cases,  in  specifications  and 

requisites.  ^9^9- 

2.  Must,  in  imperative  cases,  in  rules  and  in- 

structions. 1919- 

3.  Shall,  in  imperative  cases,  in  specifications 

and  requisites.  1919- 

4.  Should,  in  desirable  cases,  in  specifications 

and  requisites.  ^9^9' 

5.  Will,  where  reference  is  made  to  the  Pur- 

chaser's responsibility.  ^9^9' 


I 


:>'sei  ,^6M  iBVOiqqA  IsbiickO) 

:3d3B  Jriq  drf*  (s) 

:8biov/  9.dl  dsU  (d) 
him  moh&oBh^q^  m  ,B98B0-lBnohqo  ni  ,^£M  .x 


American  Railroad  Association. 
Signal  Division. 


Relay,  A.C. 
Specification, 
1919. 


SPECIFICATION  FOR  ALTERNATING  CURRENT  RELAY. 

1919. 

(Official  Approval  May,  1920.) 

1.  Requisite  sheet. 

(a)  Requisite  sheet,  section  18,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.        (S.  S.  4-a.)  1919. 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

2.  Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor  wishes 
to  vary  from  the  specification  a  tender  may  be  submitted 
covering  the  apparatus  he  desires  to  furnish.  This  tender 
shall  be  accompanied  by  full  information  showing  where- 
in the  requirements  of  the  specification  are  varied  from. 

(S.  S.  3-a.)  1919. 

3.  Design. 

(a)  The  relay  shall  be  of  a  design  approved  by  the  Pur- 
chaser. 1912. 

(b)  Moving  parts,  with  the  exception  of  the  pneumatic- 
ally operated  portion  of  the  electropneumatic  relays, 
shall  be  enclosed  in  a  weather-proof,  dust-proof  case, 
ventilated  or  non-ventilated,  as  specified  on  requisite 
sheet.  1919- 

(c)  The  enclosure  for  the  contact  parts  shall  be  so  de- 
signed that  the  contacts  may  be  readily  seen,  by  inspec- 
tion, from  the  outside.  1916- 

(d)  All  metal  parts  liable  to  corrosion,  except  wearing 
and  contact  surfaces,  shall  be  protected  from  corrosion. 
Material  used  for  protection  shall  not  soften  or  flake  oft" 
between  temperatures  thirty-five  (35)  degrees  C.  below 
zero  (—31°  F.)  and  sixty-five  (65)  degrees  C.  above  zero 
(149°  F.). 

4.  Binding  posts. 

(a)  Binding  posts  shall  be  of  brass  and  so  constructed 
that  they  cannot  be  turned  in  the  base  or  frame  to  which 
they  are  fastened.  The  threaded  part,  nuts  and  washers 
shall  be  in  accordance  with  R.  S.  A.  1070.  1919- 

(b)  Binding  posts  supporting  the  fixed  parts  of  front 
and  back  contacts  shall  be  fastened  in  their  supports  in 
such  a  manner  as  to  preclude  adjustment  of  any  kind 
without  first  breaking  the  seal  of  the  relay.  19 12. 


t 

.ri>/  i»i9riw  lo  ,b9na  nsnd  ion  sv5>xi  83ln£ld  :>i3fiW.  (d) 
noO  arii  .baiBia  9ondi»idiq  on  dns  bs«imi3q  ai  noiiqa 


::-j^:{imd£j3  ad  ^sm  labndt  n 
;Ti  ;  r»jr  girfT  .dainiiji  oi  ss 


»di  moil 

'-^03DB  sd  IlBlii! 


;r  simisnq  5?rft^o  fto!tq9!>x9  drf*  rfiiw  ,8tiBq  aitivoM  (d) 


^j^^iiJp^^l  no  b^ribs  ] 

•^:>3q8f!r 
.diQi 

.noiaoiTOa  inoii  bstaMoi 


3qo  ^Ht. 


arit  moil  ,noit 
13^11  HA  (b) 
lOBlnoo  bnr 

■fio  10  aoilo-a  ion  IlBda  aon^atuiq  :ot  baau  IbH^IbM 

woIt>d  .D  39ai§3b  (es)  avft-^^tiidi  aaimsiaqmsi  ftaawjari 

OldS  9V0dB  .3  a991S9^>  (£d)  9Va.X:l3ci8  bnfi  Cn  "l£— )  019-. 

.^i^oq  'gnibnm 

b9Jr)uijgnoD  oa  bns  asBid  io  ad  i'i^sda     '  ■-"^'^ 
d3£dv</  ui  »m«il  lo  safid  arf*  xii  bsmaJ  Y^dl  ^B^^ 

»i9rf8Bw  b«B  Biua  ,mq  babBsiri*  3dT  ^  ^ib  Y^rli 

.giQi  .0^01  .A  /a  .H  dnw  f'd  llBii^ 

tnoil  1:  vxft  9di  ^ninoqqtfa  siBoq  snibniE  (d) 

ni  aiioqqui  ni  banatsBl  sd  llBrfa  aiafilnoD  siofid  bnB 

bnbi         lo  trt-^rtrtf^tfjbf;  f?>bu{o57q  o1  zb  lannBm  s  ri3«a 

^j^j.  !  gctijlBdid  ^aift  tuoriliw 


2 

American  Railroad  Association.  .       .  „ 
,  „ .  .  .                                            Relay,  A.C. 
Signal  Division.  Specification. 
  1919. 


4.  Binding  posts. — Continued. 

(c)  Binding  posts  shall  be  arranged  so  that  the  wires 
corjiecting  to  them  will  be  held  in  such  a  manner  that 
shrinkage  of  the  binding  post  support  will  not  loosen  the 
connections.  1912. 

(d)  Binding  posts  shall  be  so  spaced  that  they  will  be 
separated  by  not  less  than  three-eighths  (^)  inch  air 
space.  1912. 

5.  Flexible  connections. 

(a)  The  flexible  connections  from  binding  posts  to  con- 
tact fingers  shall  carry  ten  (10)  amperes  continously  with- 
out injury.  If  a  larger  current  carrying  capacity  is  re- 
quired, the  flexible  connections  shall  carry  continuously 
without  injury  the  current  specified  on  requisite  sheet. 

1919. 

6.  Contacts. 

(a)  Contacts  in  normal  operation  shall  make  a  wiping 
contact  and  shall  exert  a  pressure  of  not  less  than  five- 
tenths  (0.5)  ounce.  1916. 

(b)  Resistance  of  cleaned  contacts  shall  not  exceed 
five-tenths  (0.5)  ohm. 

(c)  Contacts  shall  be  so  adjusted  that  in  their  open 
position  there  shall  be  at  least  thirty-one  thousandths 
(0.031)  inch  space  between  the  fixed  post  and  the  con- 
tacting point.  1916. 

(d)  All  parts  of  the  contact  fingers  (other  than  the 
contact  point),  including  its  flexible  connections  and  the 
post  to  which  the  ribbon  is  attached,  shall  be  separated 
by  at  least  one-tenths  (o.i)  inch  from  any  other  metal  or 
conducting  part  of  the  relay.  I9i9- 

(e)  Contact  sjiall  be  of  material  as  specified  on  requisite 
sheet.  1919- 

(f)  The  contacts  shall  be  designed  to  carry  continu- 
ously and  break  the  currents  as  specified  on  requisite 
sheet.  1919- 

7.  Dielectric  requirements. 

(a)  Unless  otherwise  specified,  electric  apparatus  as- 
sembled shall  withstand  for  one  (i)  minute  an  insulation 
test,  at  place  of  manufacture,  of  three  thousand  (3000) 
volts  a.c.  between  all  parts  of  electric  circuits  and  other 
metallic  parts  insulated  therefrom. 

(G.  E.  R.  30-a.  1919. 

(b)  A  surface  leakage  distance  of  not  less  than  three- 
eighths  (Ys)  inch  shall  be  provided  between  any  exposed 
metallic  part  of  the  apparatus  carrying  current  and  any 
other  metallic  part  thereof.         (G.  E.  R.  30-b.)  1919- 

(e)  Separate  windings  which  are  insulated  from  each 


doue  nt  blad  &d  liiw  marl*  o 
nty^^^K:         '     -  noqqsis 


stri*  nsrii  823^^  *on  ^fd  fastBiBqaa 
00  9ldix5>R  srfT  (b) 


.diei  (£.0)  ariJrrj: 

rtaqo  ihdi  rti  tBiit  balautbB  oa  ad  ilBUi^-  arj^HioO  (a) 
-noo  ad*  bne  i8oo 

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 r.  ..   .  4-  ^r*  '  r'';'^ 

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0  (B) 

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^^^^D  oh)oi»f9  io  alisq  lis  naawJad  .o.b  a^iov 


do£9  OTOli  balfiluanl  91b  rioiriw  as 


3 

American  Railroad  Association.  Relay,  A.C 

Signal  Division.  Specification. 
 —  «   1919. 


30-e.    Dielectric  requirements. — Continued. 

other  and  from  other  metal  or  conducting  parts  o£  the  re- 
lay shall  withstand  a  test  of  three  thousand  (3000)  volts 
a.c.  for  one  (i)  minute.  This  voltage  shall  be  applied  be- 
tween terminals  of  the  separate  windings  and  between 
terminals  and  other  metal  or  conducting  parts  from  which 
the  terminals  and  windings  are  insulated.  1916. 

(d)  A  potential  of  twice  the  normal  operating  require- 
ments at  a  suitable  frequency  shall  be  impressed  across 
the  windings  without  any  excessive  flow  of  current  indi- 
cating a  short  circuit.  (G.  E.  R.  30-d.)  1918. 

8.  Insulation. 

(a)  Coils  and  windings  shall  be  of  cotton  or  silk 
covered  wire,  impregnated;  of  enameled  wire,  or  as  shown 
on  requisite  sheet.  Enameling,  or  impregnation,  shall  be 
in  accordance  with  R.  S.  A.  specifications. 

(G.  E.  R.  32-a.)  1919. 

(b)  Material  used  for  insulation  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 

^,  (G.  E.  R.  32-b.)  1917. 

9.  Clearance. 

(a)  Under  the  most  unfavorable  conditions  of  play  and 
relative  position  of  parts  in  the  assembled  relay,  all 
moving  parts  except  bearings  and  contacts  shall  be  sepa- 
rated by  not  less  than  the  following  guaranteed  minimum 
clearances: 

1.  Radial  .020  inch. 

2.  Longitudinal  .017  inch. 

3.  The  guaranteed  minimum  end  play  of  the  moving 

element  shall  be  .010  inch.  1916. 

10.  O  per  action. 

(a)  The  contacts  closed  with  the  relay  energized  shall 
open  from  the  fully  energized  position  by  a  gradual  re- 
duction in  voltage  at  a  per  cent,  as  shown  on  requisite 
sheet  (which  shall,  however,  be  not  less  than  forty-five 
(45)  per  cent,  of  the  voltage  required  to  just  close  the 
contacts).  In  case  of  two-element  relays  this  test  shall 
be  made  by  reducing  the  voltage  on  the  controlled  ele- 
ment only,  the  voltage  on  the  local  element  being  main- 
tained at  constant  rated  value.  i9i9- 

(b)  The  voltage  required  to  make  contact  shall  not  be 
less  than  fifty  (50)  per  cent,  of  the  voltage  required  to 
bring  the  contacts  to  their  rated  pressure.  In  case  of 
two-element  relays  this  test  shall  be  made  by  varying  the 
voltage  on  the  controlled  element  only.  1916. 

(c)  The  relay  shall  perform  satisfactorily  when  the 
voltage  on  all  elements  is  reduced  to  eighty-five  (85)  per 
cent,  of  their  rated  voltages.  1916. 


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4 

American  Railroad  Association.  R^iay  A  C 

Signal  Division.  Specification. 
  1919. 


10.  Operation. — Continued. 

(d)  For  two-element  track  relays  the  above  readings 
shall  be  made  with  ideal  phase  relations  betv/een  the  cur- 
rents in  the  two  windings. 

(e)  For  two-element  line  relays  the  above  readings 
shall  be  made  with  phase  relations  between  the  two  wind- 
ings which  approximate  conditions  as  specified  on  requisite 
sheet.  1916. 

11.  Operating  data. 

(a)  Each  relay  shall  bear  a  metal  name  plate  on  which 
is  stated: 

1.  Rated  volts  and  amperes  at  terminals  of  each 
element.  1919- 

2.  Frequency.  I9i9- 

(b)  The  following  additional  data  shall  be  stated  on 
either  metal  name  plate  or  a  paster: 

1.  Manufacturer's  name.  1919- 

2.  Type.  1919. 

3.  Serial  number.  1919- 

4.  Type  of  external  device.  1919- 

5.  Volts,  including  external  device.  1919. 

(c)  Both  metal  name  plate  and  paster  shall  be  so  lo- 
cated that  they  can  be  readily  seen  when  the  relay  is  in 
its  operating  position.  1916. 

12.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise 
the  Purchaser  what  disposition  is  to  be  made  of  the  de- 
fective material.  The  Contractor  shall  pay  all  freight 
charges.  (S.  S.  6-c.)  1919- 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1917- 

13.  Tests. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 


,  -J.  _  .  „  ■         .:.^I«"OWJ  io'5-  (b) 

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5 

American  Railroad  Association.  Rela    A  C 

Signal  Division.  fiL^ifio^UA 


Specification. 
1919. 


13.  Tests. — Continued. 

(d)  Tests  enumerated  below  shall  be  made  on  all  the 
relays: 

1.  Dielectric  strength: 

(a)  Windings  to  ground. 

(b)  Between  windings. 

(c)  Between  all  terminal  posts  of  contacts 
and  ground. 

(d)  Twice  rated  potential  applied  to  ter- 
minals of  each  winding. 

2.  Clearance  of  moving  parts. 

(a)  Radial. 

(b)  Longitudinal. 

(c)  Minimum  end  play  of  moving  element. 

3.  Electrical  operation: 

(a)  Voltage  to  pick  up  contacts. 

(b)  Voltage  to  drop-away  point. 

(c)  Voltage  for  normal  operation  with  con- 
tacts at  rated  pressure. 

(d)  Per  cent,  of  "pickup"  voltage  at  which 
contacts  open  by  gradual  reduction  of 
voltage  of  control  element,  as  specified 
in  section  10   iQiQ- 

14.  Sealing. 

(a)  The  enclosure  containing  the  moving  parts  of  the 
relay  shall  be  sealed  with  the  Manufacturer's  seal. 

1916. 

15.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919. 

16.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor  and  name  and  address  of  Consignee, 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents,  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.)  1919. 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  9-c.)  1919- 

17.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 


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6 

American  Railroad  Association.  _  ,      ,  „ 
^ .  Relay,  A.C, 
Signal  Division.  Specification. 
 —  —   1919^ 

17-a.    Warranty. — Continued. 

tion  under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of, so  as  to,  in  the  Contractor's  judgment,  affect  its  proper 
I  functioning  or  reliability,  nor  which  has  been  subject  to 
misuse,  negligence  or  accident.         (S.  S.  lo-a.)  igig* 


18.    Requisites  for  alternating  current  relays  A.  R.  A.  speciBcation. 

1919. 

(a)  Purchaser  to  fill  in  such  items  as  he  desires  to 
specify.  Contractor  to  fill  in  all  other  blanks,  so  that  the 
requisite  sheet  will  be  complete  when  finally  submitted 
with  Contractor's  quotation:.  1919. 

(b)  Identification.    Relays  covered  by  this  sheet  are 

for   Railroad  on  inquiry   order 

  Requisition   iQi?* 

(c)  Relays  to  be  furnished  in  accordance  with  the  fol- 
lowing drawings: 


1919. 

(d)  Type. 

1.  Non-selective  with  respect  to  frequency. 

(a)  Vane 

(b)  Iron  galvanometer 

(c)  Ironless  galvanometer 

(  Shell  rotor 

(d)  Induction  motor  |  j^^^  ^^^^^ 

(e)  Z-Armature 

(f)  Tractive  magnet 

(g)  Electropneumatic* 

2,  Selective  with  respect  to  frequency. 

(a)  Vane  frequency. 

(b)  Centrifugal  frequency 

1919. 


*For  specifications  covering  the  pneumatic  features  of  this  relay, 
see  R.  S.  A.  specifications  for  electropneumatic  interlocking.  1919. 


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 nortigiiipdH  ,  - 


ai:;"r:-ii5un::uDati'3, 

i    li  ohbV  (£) 
:  psii  ifigifiiiinaD  (d) 


American  Railroad  Association. 
Signal  Division. 


Relay,  A.C. 
Specification. 
1919. 


i8.    Requisites  for  alternating  current  relays,  A.  R.  A.  specification. 
Continued. 

(e)  Characteristics. 

1.  Manufacturer's  name   

2.  Catalogue  reference   

3.  Track   

4.  Line   

5.  Time  required  to  open 

contact  after  de- 
energization  of 
relay 

6.  Time  required  to  close 

contact  after  de- 
energization  of 
relay 

7.  Time  required  to  open 

contact  after 
energization  of 
relay 

8.  Time  required  to  close 

contact  after 
energization  of 
relay 


Contact  No.  i 
"  2 
"  3 
4 

Contact  No.  i 
"  2 

"  3 
"  4 

I 
2 
3 
4 


Contact  No 
«  <( 

«  (< 


Coiutact  No.  I 
"  2 
"  3 
"  4 


9. 

Single  element 

10. 

Double  element 

II. 

Double  element: 

Split  phase 

12. 

Double  element: 

Series  connection 

13- 

Connectioru  of 

r  Direct 

Series  device 


controlled  element 
to  line 

14.  Two-phase 

15.  Three-phase 

16.  Two-position 

17.  Three-position  by  reverse  operation 

18.  Three-position  by  consecutive  opera- 

tion 

19.  Power. 

(a)  Rated  input  at  relay  terminals. 

Volts 
Amperes 
V.  A. 
Watts 
P.  F. 


I.  Control  element  ^ 


itt9m9l9  dlduoQ  .01 


sasdq-owT  .i^i 
q-owT  .di 


10  noiiBsi^idna 


salt  o) 


fsiaqmA  j 


8 

American  Railroad  Association. 
Signal  Division. 


i8-e.    Requisites  for  alternating  current  relays,  A.  R.  A.  specification. 
Continued. 

r  Volts   

I  Amperes   

V.  A  

Watts   

P.  F  

Volts   

Amperes   

V.  A  

Watts   

P.  F.   

Input  to  relay  circuits  including  ex- 
ternal devices. 


Relay,  A.C. 
Specification. 
1919. 


2.  Local  element 


3.  Third  element 


(b) 


I  Control  circuit 


2.  Local  circuit 


3.  Third  circuit 


Volts 

Amperes 

< 

V.  A. 

Watts 

P.  F. 

Volts 

Amperes 

V.  A. 

Watts 

P.  F. 

Volts 

Amperes 

1 

V.  A. 

Watts 

I 

P.  F. 

20.  Rated  frequency 

21.  Shall  relay  be  immune  to  d.c? 

22.  Shall  relay  be  immune  to  a.c.  of 
frequency? 

23.  Track  relay  to  be  f 
unaffected  by  the 
following  values 
of  propulsion  cur- 
rent 

Contacts. 

f  Front 

(a)  Independent  \  Back 

[  De-energized 

C  Front  and  de-ener-^ 
J  gized 


Surge  amps. 

for    sees. 

continuous  amps. 


24 


(b)  Non-independent 


Back  and 
gized   . . 


de-ener- 


(  8 


.A  .V  \  J-t;-. 


a*loV  i 
.A  .V 

x9  sntbtrlDni  eliuaiia  of  iuqnl  (cf) 


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9 

American  Railroad  Association. 
Signal  Division. 


Relay,  A.C. 
Specification. 
1919. 


i8-e.    Requisites  for  alternating  current  relays,  A.  R.  A.  speciBcation. 
Continued. 

(c)  Continuous  carrying  capacity  

amps. 

  amp.  at 

  volt  d.c. 

  amp.  at 

  volt  a.c. 

25.  Flexible    connections    continuous  carrying 
capacity  amps. 

(  Ventilated   [ 

26.  Inclosure  for  contacts  I   \ 

27.  Special  requisites. 


(d)  To  open  circuit  of  ^ 


1916. 

(f)  Weight. 

1.  Total  net  weight  

2.  Total  shipping  weight   1919- 

(g)  Inspection  or  tests. 

1.  Shall  inspectionis  or  tests  be  made  at  point  of 
production  under  supervision  of  Purchaser? 

1917. 

2   days'  notice  required  by  Pur- 
chaser before  apparatus  will  be  ready  for  in- 
spection or  tests.  1916. 

3.  Shall  inspection  or  tests  be  made  at  destina- 
tion by  Purchaser?    1918. 

4.  Shall  records  of  inspection  and  tests  as  fur- 
nished by  Contractor  be  accepted?  

1919. 

(x)  Remarks. 


(y)  Signed 
(z)  Date  . 


1916. 
1916. 
1916. 


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. . . ...  ^baJqdooB  ^d  iol36ilnoD  y^d  bsd&in 


I  Signal. 

American  Railroad  Association,  Motor. 

„ .  Semaphore. 

Signal  Division.  s,.*.Hfir>5.fim 


Specification. 
1919. 


SPECIFICATION  FOR  ALTERNATING  CURRENT  MOTOR 
SEMAPHORE  SIGNAL. 
1919. 

(Official  Approval  May,  1920.) 

1.  Requisite  sheet. 

(a)  Requisite  sheet,  section  23,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.        (S.  S.  4-a.)  1919. 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

2.  Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor  wishes 
to  vary  from  the  specification  a  tender  may  be  submitted 
covering  the  apparatus  he  desires  to  furnish.  This  ten- 
der shall  be  accompanied  by  full  information  showing 
wherein  the  requirements  of  the  specification  are  varied 
from.  (S.  S.  3-a.)  1919. 


3.  Mechanism  housing. 

(a)  Mechanism  housing  shall  be  weather-proof.  Doors 
shall  be  of  ample  size  and  suitably  arranged  for  con- 
venient and  ready  access  to  the  mechanism.  Means  shall 
be  provided  for  sufficient  ventilation.  1918. 

(b)  Convenient  means  shall  be  provided  for  bringing 
electrical  connections  from  the  pole  to  the  mechanism 
cases  when  latter  are  located  at  the  top  of  the  mast,  and 
for  making  a  good  mechanical  connection  where  the  wires 
enter  the  case.  1918. 

4.  Masts. 

(a)  Masts  shall  be  as  specified  on  requisite  sheet. 

1918. 

5.  Semaphore  spectacle. 

(a)  Semaphore  spectacle  shall  be  as  specified  on 
requisite  sheet.  If  the  maximum  torque  of  the  spectacle 
and  blade  specified  exceeds  torque  curve,  R.  S.  A.  1064, 
the  excess  torque  shall  be  compensated  for  by  counter- 
weighing the  spectacle.  1918. 

6.  Roundels. 

(a)  Roundels  shall  be  in  accordance  with  R.  S.  A. 
specification  and  shall  be  of  the  color  and  size  shown  on 
requisite  sheet.  1918. 


.JAMOia  aHOMAMac. 
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baiiOfiJis  ,ea  fioh3»«  aiiampsH  (b) 

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gnrwbda  noiifimiolni  Uii?  yd  b^insqmooDB  ad  IlBila  T^b 

viq-iariJB^w  rjsniauod  tnainBriosM  (b) 

.  .noiiBil  -        -bghi?  lol  babivoiq  9d 

onignitd  lol  bt,bivoiq  9d  :»nt  inainavnoO  ^  (d) 

rtiainBdoam  ^rit  ol  aldq  ^ni  mo;x  .  >3  iBonJoala 

baB  ,t^fim  9ri1  lo  qoi  9rf^  is  &-^booI  nsrfw  898Sd 

89iiw  9ri*  9i3rfw  nobo^  ^riBrio^  boos  B^i^sm  ^oi 

.Jddrig  9*iaiop9i  no  baftbaqa  as  ^d  ilBiia  a^E 

no   bsaiosqa   as   »d   ilfiria   slDSiDsqa    dioriq^.nao  y.; 
al^Bloaqa  arli  ic  supiol  mi^mixBrn  mil  H    .i^ada  ^^^fjupe. 
kSoi  .a  .8  ,51  ,9Viwo  aupioJ  abasaxs  b^Bnaqa  sbBld  bn£ 
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Qjpj  .iDBJosqa  9d3  snidgisw 

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no  nworia  ssia  bnB  loloo  srit  lo  ad  lifiria  bns  nol1Bohto9q^ 


2  Signal. 

American  Railroad  Association.  ^^otor. 

„ .      ,  ^ .  .  .  isemaphore. 

Signal  Division.  Specification. 
  1919. 


7.  Operating  connection  mechanism  at  base  0/  mast. 

(a)  Operating  connection  of  the  pull  clear  type  shall 
have  tensile  strength  of  not  less  than  fifteen  hundred 
(1500)  pounds.  Material  to  be  used  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 
Suitable  connections  shall  be  provided  at  each  end,  one 
of  which  shall  have  means  of  adjustment.  1918. 

(b)  Operating  connection  of  push  clear  type  shall  be 
three-fourths  (34)  inch  iron  pipe  or  its  equivalent  in 
mechanical  strength;  m.aterial  used  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 
Suitable  connectors  shall  be  provided  at  each  end,  one  of 
which  shall  have  means  for  adjustm.ent.  The  distance 
between  guides  shall  be  not  miore  than  eleven  (11)  feer. 

1918. 

8.  Bearings. 

(a)  Bearings  shall  be  of  ample  dimensions  to  insure 
reasonable  durability.  1918. 

(b)  Means  shall  be  provided  for  necessary  lubrication 
of  bearing  surfaces.  1918. 

(c)  The  semaphore  bearings  shall  be  so  constructed  as 
to  prevent  the  entrance  of  v/ater.  1918. 

(d)  All  exposed  oil  holes  shall  be  provided  v/ith 
weather-proof  oil  cups  or  covers.  1918. 

(e)  The  diameter  of  the  outer  end  of  the  boss  of  the 
semaphore  bearing  shall  be  not  more  than  one  and  three- 
fourths  (134)  inch  larger  than  the  outside  diameter  of  the 
bearing.  1918. 

9.  Semaphore  shaft. 

(a)  The  semaphore  shaft  shall  be  made  of  steel  not  less 

than  one  (i)  inch  square  or  one  and  one-fourth  (i^) 
inches  in  diameter,  except  the  outer  end,  which  shall  take 
the  spectacle  specified  on  requisite  sheet.  1918. 

ID.  Mechanism. 

(a)  The  movem.ent  of  the  arm  v/hen  returning  to  a  re- 
strictive position  shall  be  so  controlled  as  to  prevent  any 
undue  strain  from  being  imposed  upon  the  mechanism. 

1918. 

(b)  The  torque  applied  at  semaphore  shaft  with  spec- 
tacle removed,  necessary  to  maintain  the  movement  of 
the  mechanism  of  the  drive  back  type  at  any  position  in 
its  arc  of  travel,  shall  not  exceed  five  (5)  foot  pounds. 
When  this  mechanism  is  located  at  base  of  mast,  ad- 
ditional counter  torque  load  due  to  operating  connections 
shall  be  compensated  for.  1918. 


noo-g^iiB-i^qO  (d) 


X3   HA  (b) 
5  ariT  (a) 


soqmi 


Bhnuoq  tool  (i)  9vrt  baoaxt 


ion  l^diB  lo  9bs«x 

dw  neifr  ni  a^iiani 


.1 


3  Signal. 

American  Railroad  Association.  Motor. 

Semaphore. 

Signal  Division.  Specification. 


10.  ikTecAamsm.-- -Continued. 

(c)  Gears  shall  be  so  protected  as  to  minimize  the 
likelihood  of  foreign  matter  interfering  with  them. 

1918. 

11.  Circuit  controller. 

(a)  Circuit  controller  contacts  shall  be  self-cleaning, 
or  they  shall  be  made  of  non-corrosive  materials  and 
shall  be  so  located  as  to  minimize  the  likelihood  of  the 
contacts  not  performing  their  functions  on  account  of 
foreign  substances  falling  between  them.  19 18. 

(b)  In  addition  to  the  regular  contacts  for  controlling 
the  signal  motor  and  hold  clear  device,  the  circuit  con- 
troller shall  be  equipped  with  contacts  for  controlling  ex- 
ternal circuits,  as  specified  on  requisite  sheet.  1918. 

(c)  If  contacts  for  pole  changing  are  required,  they 
shall  be  arranged  as  specified  on  requisite  sheet.  1918. 

12.  Terminal  board. 

(a)  Terminal  board  shall  be  made  of  treated  hard  wood 
not  less  than  one-half  (i/^)  inch  thick  or  as  specified  on 
requisite  sheet.  1918. 

(b)  Terminal  board  shall  be  located  so  as  to  be  easily 
accessible.  1918. 

13.  Wiring. 

(a)  Wiring  shall  be  neatly  arranged  and  securely 
fastened.  1918. 

(b)  Stranded  insulated  wire  not  less  than  No.  16 
A.  W.  G.  shall  be  used  for  internal  wiring  of  signal  case. 

1918. 

(c)  Wires  shall  be  provided  with  eyelets  at  each  end. 

19T.8. 

(d)  A  wiring  or  connecting  diagram  shall  be  located  in 
a  conspicuous  place  in  the  signal  case.  1918. 

14.  Motor. 

(a)  Motor  shall  operate  at  the  voltage,  phase  and  fre- 
quency specified  on  requisite  sheet.  ,  1918. 

(b)  Motor  shall  be  capable  of  starting  the  semaphore 
at  any  point  in  its  arc  with  thirty-three  (33)  per  cent, 
excess  torque  at  rated  voltage  and  frequency.  1918. 

(c)  Motor  shall  be  capable  of  starting  the  spectacle 
and  blade  from  rest  at  any  point  in  its  arc  when  a  voltage 
of  fifteen  (15)  per  cent,  under  rated  voltage  is  impressed 
upon  the  motor  terminals,  the  frequency  being  normal 
and  the  torque  complying  with  torque  curve,  R.  S.  A. 
1064.  1918. 


1919. 


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.A  ,S  .3  ,aviuo  aupioi  riiiw  §ni\:Iqmo3  aiipiot  adl  bns 


4  Signal. 
American  Railroad  Association.  A.C  Motor. 

Si,n.,  Diyision.  IS^Sn. 

__  ^^^^^ 


14.  Mofor.— Continued. 

(d)  Motor  and  mechanism  o£  the  drive  back  type 
should  start  back  toward  the  stop  position  when  the  volt- 
age impressed  on  the  motor  is  reduced  to  sixty  (60)  per 
cent,  of  the  minimum  voltage  required  to  start  it  toward 
the  proceed!  position  from  the  same  point  in  its  arc,  the 
counter  torque  being  not  less  than  required  by  torque 
curve,  R.  S.  A.  1064,  and  the  frequency  being  normal. 

1918. 

(e)  No  centrifugal  electrical  cutouts  shall  be  employed 
for  starting  the  motor.  1918. 

(f)  Motor  shall  be  so  designed  that  foreign  matter  will 
not  enter,  or  wear  take  place  to  such  an  extent  as  to  cause 
an  unsafe  condition.  1918. 

(g)  The  operating  characteristics  of  the  motor  shall  be 
as  shown  on  requisite  sheet.  1918. 

(h)  In  the  assembled  motor  of  the  drive  back  type  of 
mechanism,  all  moving  parts,  except  bearings  and  con- 
tacts, shall  be  separated  by  not  less  than  twenty-five 
thousandths  (.025)  inch.  The  guaranteed  minimum  end 
play  of  moving  parts  shall  be  ten  thousandths  (.010) 
inch.  1918. 

15.  Hold  clear  device. 

(a)  Hold  clear  device  of  the  induction  motor  type  shall 
be  subject  to  the  same  clearance  requirements  as  stated 
for  the  signal  motor.  19 18. 

(b)  The  hold  clear  device  shall  hold  the  signal  in  its 
proceed  or  caution  position  at  rated  frequency  and  the 
torque  as  per  torque  curve,  R.  S.  A.  1064,  at  any  voltage 
at  which  the  motor  will  clear  the  signal.  19 18. 

(c)  The  hold  clear  device  and  mechanism  shall  be  so 
constructed  that  it  will  release  and  allow  the  signal  to 
assume  its  restrictive  position  when  the  voltage  between 
terminals  of  the  hold  clear  winding  is  reduced  to  thirty 
(30)  per  cent,  of  the  rated  voltage,  the  semaphore  torque 
complying  with  torque  curve,  R.  S.  A.  1064,  and  frequency 
being  normal.  1918. 

(d)  Hold  clear  devices  of  the  tractive  magnet  type 
shall  have  an  air  gap  between  armature  and  magnet  cores 
of  not  less  than  fifteen  thousandths  (.015)  inch,  and  this 
gap  shall  be  maintained  by  a  positive  and  durable  stop. 
The  construction  shall  be  such  that  there  will  be  no  un- 
due accumulation  of  lubricating  oil  in  the  air  gap.  Mag- 
net coils  shall  be  so  applied  and  connected  that  they  can 
be  easily  replaced.  1918. 

(e)  The  lead  wires  of  magnet  coils  shall  be  not  smaller 
than  No.  18  A.  W.  G.  stranded  copper  wire.  1918. 


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5  Signal. 
American  Railroad  Association.  A.C.  Motor. 

Signal  Division.  Semaphore. 

 Specification. 

1919. 


1 6.    Dielectric  requirements. 

(c)  A  surface  leakage  of  not  less  than  one-fourth  (54) 
inch  shall  be  provided  between  any  exposed  metallic  part 
of  the  mechanism  carrying  current  and  any  other  metallic 
part  thereof  (motor  commutator  excepted).  1917. 

(d)  A  potential  of  twice  the  normal  operating  require- 
ments at  a  suitable  frequency  shall  be  impressed  across 
the  v/indings  without  any  excessive  flow  of  current  indi- 
cating a  short  circuit.  (G.  E.  R.  30-d.)  1919. 

(e)  Separate  motor  windings  which  are  insulated  from 
each  other  shall  withstand  a  potential  test  between 
their  terminals  of  one  thousand  (1000)  volts  a.c.  plus 
twice  the  rated  potential  of  the  circuit  to  which 
the  windings  are  connected  for  one  (i)  minute.  All 
motor  windings  shall  withstand  a  potential  test  between 
their  terminals  and  other  metal  parts  from  which  these 
v/indings  are  insulated  of  one  thousand  (1000)  volts  a.c. 
plus  twice  the  rated  potential  of  the  circuit  to  which  the 
windings  are  connected  for  one  (i)  minute.  1918. 


17.  Insulation. 

(a)  Coils  and  windings  shall  be  of  cotton  or  silk- 
covered  wire,  impregnated;  of  enameled  wire,  or  as 
shown  on  requisite  sheet.  Enameling  or  impregnation 
shall  be  in  accordance  with  R.  S.  A.  specification. 

(G.  E.  R.  32-a.)  1919. 

(b)  Material  used  for  insulation  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 

(G.  E.  R.  32-b.)  1917. 

18.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages 
of  manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification 
have  been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  de- 
fective material.  The  Contractor  shall  pay  all  freight 
charges.  (S.  S.  6-c.)  1919. 


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6  Signal. 
American  Railroad  Association.  A.C.  Motor. 

Signal  Division.  Semaphore. 

 Specification. 

1919. 


18.  Inspection. — Continued. 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1919. 

19.  Tests. 

(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919. 

(b)  Contractor  shall  give  the  Puchaser  sufficient  notice 
of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 

(d)  Tests  shall  be  made  as  specified  on  requisite  sheet. 

1917. 

(e)  Tests  enumerated  below  shall  be  made  on  all  the 
signals.  1919. 

I.  Dielectric  strength: 

(a)  Windings  to  ground.  1918. 

(b)  Between  windings.  1918. 

(c)  Betweerj  all  terminal  posts  of  circuit 
controller  and  ground.  1918. 

(d)  Twice  rated  potential  applied  to  ter- 
minals of  windings.  1918. 

*2.  Current  required  by  motor  at  rated  voltage 
and  frequency.  1918. 
3.  Minimum  operating  current  and  voltage  of 
motor  at  rated  frequency  and  normal  torque. 

1918. 

*4.  Current  required  by  hold  clear  device  at  rated 
voltage  and  frequency  and  normal  torque. 

1918. 

5.  Minimum  operating  current  and  voltage  for 
hold  clear  device  at  rated  frequency  and  nor- 
mal torque.  1918. 
*6.  Time  to  clear  signal  at  rated  voltage  and  fre- 
quency and  normal  torque.  1918. 

7.  Minimum  clearance  between  moving  and  fixed 
parts  of  motor  and  hold  clear  device  of  the 
drive  back  type  of  mechanism.  1918. 


♦Values  may  vary  ten  (10)  per  cent,  above  or  below  those  speci- 
fied. 


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7  Signal. 
American  Railroad  Association.  A.C.  Motor. 

Signal  Division.  I^S^i^on. 

  1919. 


19.  Tests, — Continued. 

(f)  The  following  test  shall  be  made  on  the  first  two 
(2)  signals  of  new  characteristics:  iQiQ- 

1.  Watts  required  by  motor  at  rated  voltage  and 
frequency  and  normal  torque.  1918. 

2.  Watts  required  by  hold  clear  device  at  rated 
voltage  and  frequency  and  normal  torque. 

1918. 

3.  Ability  of  motor  to  start  from  any  point  in  its 
arc  with  thirty-three  (33)  per  cent,  excess 
torque  at  rated  voltage  and  normal  frequency. 

1918. 

4.  Current  and  watts  required  by  motor  when 
clearing  signal  with  thirty-three  (33)  per  cent, 
excess  torque  at  rated  voltage  and  normal  fre- 
quency. 1 9 18. 

20.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  protect  against  loss  or  damage  dur- 
ing shipment.  (S.  S.  8-a.)  1919. 

21.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  num- 
ber, name  of  Consignor,  and  name  and  address  of  Con- 
signee, shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.)  1916. 

(c)  Where  car-load  shipments  are  made,  nam^  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  9-c.)  1919. 

22.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of, so  as  to,  in  the  Contractor's  judgment,  affect  its 
proper  functioning  or  reliability,  nor  which  has  been  sub- 
ject to  misuse,  negligence  or  accident. 

(S.  S.  lo-a.)  1919. 


8  Signal. 

American  Railroad  Association.  Motor, 
„ .      ,  _ .  .  ,  Semaphore. 

Signal  Division.  Specificaaon. 

"  — ~  ' — — ~  ~ — — "  —   1919. 

23.    Requisites  for  alternating  current  motor  semaphore  signal, 
A.  R.  A.  speciiication. 

(a)  Purchaser  to  fill  in  such  items  as  he  desires  to  * 
specify.     Contractor  to  fill  in  all  blanks,  so  that  the 

requisite  sheet  will  be  complete  when  finally  submitted 
with  Contractor's  quotations.  1918. 

(b)  Identificationi:    Signals  covered  by  this  sheet  are 

for   Railroad  on  inquiry 

 Order  Requisition  

1918. 

(c)  Signals  shall  be  in  accordance  with  the  following 
drawings : 

1.  Masts: 

(a)  Ground  R.  S.  A.  1035   

1918. 

(b)  Bracket         R.  S.  A.  1032  or   

1918. 

(c)  "  R.  S.  A.  1039  or   

1918. 

(d)  "  R.  S.  A.  1033  or   

1918. 

2.  Pinnacle  R.  S.  A.  1050  or   

1918. 

3.  Base  R.  S.  A.  1034  or   

1918. 

4.  "  R.  S.  A.  1036  or   

1918. 

5.  "  R.  S.  A.  1038  or   

1918. 

6.  Ladder  R.  S.  A.  1026  or   

1918. 

7.  "  R.  S.  A.  1027  or   

1918. 

8.  "  R.  S.  A.  1028  or   

1918. 

9.  "  R.  S.  A.  1029  or   

1918. 

10.  Ladder  foundation  R.  S.  A.  1052  or   

1918. 

11.  Semaphore  spectacle  R.  S.  A.  1040  or   

1918. 

12.  "  "       R.  S.  A.  1041  or   

1918. 

13.  "  "     R.  S.  A.  1233  or   

1918. 


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9  Signal. 
American  Railroad  Association.  A.C.  Motor. 

Signal  Division.  Semaphore. 

 Specification. 

1919. 


23-c.    Requisites  for  alternating  current  motor  semaphore  signals, 
A.  R.  A.  speciBcation. — Continued. 

14.  Signal  blade  R.  S.  A.  1065  or   

1918. 

15.  Lamp  R.  S.  A.  iioo  or   

1918. 

16.  "  R.  S.  A.  iioi  or   

1918. 

17.  Lamp  bracket          R.  S.  A.  1049  or   

1918. 

(d)  Type: 

1.  Ground.  19 18. 

2.  Bridge  or  bracket.  1918. 

3.  Number  of  arms.  1918. 

4.  Aspect.  1918. 

5.  Mechanism.  1918. 

(a)  Top  of  mast.  1918. 

(b)  Base  of  mast.  1918. 

(e)  Blade. 

I.  Material    1918. 

(f)  Roundel: 

I.  Diameter    1918. 

i  Flat.  I 
'  (  Convex,  j  1918. 

3.  Color: 

(a)  Stop    1918. 

(b)  Caution    1918. 

(c)  Proceed    1918. 

(d)  Backlight    1918. 

4.  Size    1918. 

(g)  Lighting: 

1.  Semaphore  lamp: 

(a)  Oil.  1918. 

^  .     (  single  socket   ]  (  fused.  ] 

(b)  Electric   |  ^^^^^^  ^^^^^^  |  |  unfused.  j 

19 18. 

(c)  Convertible.  1918. 

2.  Incandescent  lamp: 

(a)  Catalogue  reference    1918. 

(b)  Volts    1918. 

(c)  Watts   1918. 

(d)  Candle-power    1918. 

(e)  Bulb    1918. 

(f)  Base    1918. 

(g)  Filament    1918. 

(h)  Extra  bulbs  required   1918. 


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lo  Signal. 
American  Railroad  Association,  s^Lpho*^!: 

Signal  Division.  Specification. 
 —  =   1919. 


23.    Requisites  for  alternating  current  motor  semaphore  signals, 
A.  R.  A.  speci£cation.-^Continued. 

(h)  Operating  characteristics: 

1.  Type  o£  motor   1918. 

2.  Frequency    1918. 

3.  Phase    1918. 

4.  Rated  operating  voltage   1918. 

5.  Minimum  operating  voltage   1918. 

6.  Maximum  current  to  clear,  torque  curve,  R.  S, 
A.  1064    1918- 

7.  M'aximum  current  to  clear  thirty-three  (33) 
per  cent,  excess  torque  curve,  R.  S.  A.  1064 
  1918. 

8.  Maximum  watts  torque  curve,  R.  S.  A.  1064 
  1918. 

9.  Time  to  clear  signal  at  normal  torque,  rated 
voltage  and  frequency  

(a)   °  to  °    sec. 

1918. 

(b)   °  to   °   sec. 

1918. 

10.  Hold  clear  device: 

(a)  Current,  rated  voltage  and  frequency 
  1918. 

(b)  Watts,   rated   voltage   and  frequency 
  1918. 

(c)  Number  and  kind  of  contacts  operated 
by  hold  clear  device   1918. 

(i)  Circuit  controller: 

1.  Circuit  controller  contacts  in  addition  to  those 
required  for  operating  signals  shall  be  fur- 
nished as  follows: 

(a)  One  contact  open  between   ° 

and  °.  1918. 

(b)  One  contact  opem  between   ° 

and  °.  1918.  ^ 

(c)  One  contact  closed  between  ° 

and  °.  1918.  ^ 

(d)  One  contact  closed  between  ° 

and  °.  1918. 

2.  Pole  changer  contacts  shall  be  furnished  for 
changing  polarity: 

(a)  Between  0°  and  45°.  1918. 

(b)  Between  45°  and  90°.  1918. 

(c)  Between   °  and   °. 

1918. 

(j)  Terminal  board  shall  be    1918. 


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1 1  Signal. 
American  Railroad  Association.  f^maphorl* 

Signal  Division.  Specification. 
 .  „  — — —  1919. 


Requisites  for  alternating  current  motor  semaphore  signals, 
A.  R.  A.  specification.— Continued. 

(k)  Insulation  of  coils  and  windings  shall  be  

1918. 

(1)  Counters: 

1.  I  ou^V     ^  f  be  furnished.  1918. 
(  Shall  not  J 

2.  To  count  between 

(a)   °  and   °.  1918. 

(b)   °  and  °.  1918. 

(m)  Painting: 

I.  Shall  be  in  accordance  with  R.  S.  A.  specifica- 
tion. 1918. 

(n)  Weight. 

1.  Total  net  weight   

2.  Total  shipping  weight   IQIQ- 

(o)  Inspection  or  tests: 

1.  Shall  inspections  or  tests  be  made  at  point  of 
production  under  supervision  of  Purchaser? 
  1917. 

2  days  notice  required  by  Purchaser 

before  apparatus  will  be  ready  for  inspection 
or  test.  1916. 

3.  Shall  inspection  or  tests  be  made  at  destina- 
tion by  Purchaser?    1918. 

4.  Shall  record  of  inspection  and  tests  as  fur- 
nished by  Contractor  be  accepted?   

1919. 

(x)  Remarks   

  1916. 

(y)  Signed   

(z)  Date    ^9^6- 


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I  Signal. 

American  Railroad  Association.  Electric  Color 

,  _  .  .  .  Light. 

Signal  Division.  Specification. 


SPECIFICATION  FOR  ELECTRIC  COLOR  LIGHT  SIGNAL. 

1919. 

(Official  Approval  May,  1920.) 

:.    Requisite  sheet. 

(a)  Requisite  sheet,  section  21,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.         (S.  S.  4-a.)  igiQ- 

(b)  Where  blanks  have  not  been  filled,  or  vi^here  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

J.  Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor  wishes 
to  vary  from  the  specification  a  tender  may  be  submitted 
covering  the  apparatus  he  desires  to  furnish.  This  tender 
shall  be  accompanied  by  full  information  showing  where- 
in the  requirements  of  the  specification  are  varied  from. 

(S.  S.  3-a.)  1919. 


1919. 


3.  Design. 

4.  Case. 


(a)  The  signal  shall  be  of  a  design  approved  by  the 
Purchaser.  1919- 

(a)  Case  shall  be  weatherproof.  1919- 

(b)  Case  shall  be  provided  with  hand  holes  or  doors  to 
give  access  to  terminal  boards  and  lamps.  IQ^Q* 


5.  Terminal  boards. 

(a)  Terminal  boards  shall  be  made  of  treated  hard 
wood  not  less  than  one-half  (Yz)  inch  thick  or  as  speci- 
fied on  requisite  sheet.  1919- 

(b)  Terminal  boards  shall  be  located  so  as  to  be  easily 
accessible.  iQiQ* 

6.  Wiring. 

(a)  Wiring  shall  be  neatly  arranged  and  securely  fast- 
ened. 1918. 

(b)  Insulated  wire  not  less  than  No.  14,  A.  W.  G.  shall 
be  used  for  internal  wiring  of  case.  i9i9- 

(c)  A  wiring  or  connecting  diagram  shall  be  located  in 
a  conspicuous  place  in  the  case.  1918. 

(d)  All  wiring  shall  terminate  at  binding  posts.  1919. 

7.  Insulation. 

(b)  Material  used  for  insulation  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 

(G.  E.  R.  32-b.)  1917- 


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gjgj  ;  io  §nhiw  Ismatni  tol  baaw  ad 

ni  balBOoi  ad  Ik  b  snhoannoa  lo  g/ihiw  A  (3) 

g^gj  ad)  ni  aosiq  auouoiqanoD  b 

.aisoq  g  jjBiiimiaj  Ilfiria  gnhiw  HA  (f>) 

IHw  SB  doua  ad  Ilfiria  noilBluani  lol  baao  iBnaifiM  (d) 
.gnohibnoo  ohariqaom^^        ^  ^  ;  ■  -  f!  -^d  Ion 

.^Tc>T  (.d-se  M  .a  .o) 


2  Signal. 
American  Railroad  Association.  Electric  Color 

o-       r  T^  -      '  Light. 

Signal  Division.  Specification. 
 —  1919. 


8.  Range. 

(a)  The  range  in  daylight  under  bright  sunlight  con- 
ditions shall  be  determined  when,  lamps  are  operating  at 
the  wattage  and  candle  power  stated  on  requisite  sheet. 

1919. 

9.  Spread. 

(a)  The  visual  spread  shall  be  as  specified  on  requisite 
sheet.  1919. 

10.  Lenses  and  roundels. 

(a)  The  size  and  type  of  lenses  and  roundels  shall  be 
as  specified  on  requisite  sheet.  1919- 

(b)  Main  or  objective  lenses  or  roundels  shall  have  a 
diameter  of  not  less  than  five  (5)  inches.  1919- 

(c)  Lens  units  of  the  same  type  and  manufacture  shall 
be  interchangeable.  I9i9« 

11.  Lamps. 

(a)  Lamps  if  furnished  shall  be  of  the  type  and  elec- 
trical characteristics  as  specified  on  requisite  sheet. 

1919. 

(b)  The  number  of  lamps  back  of  each  lens  unit  or 
roundel  shall  be  as  specified  on  requisite  sheet.  1919. 

12.  Mounting. 

(a)  Mounting  shall  be  adjustable  so  as  to  provide  the 
rangej  as  stated  on  requisite  sheet,  and  at  the  same  time 
give  as  good  a  close  range  indication  as  other  limiting 
conditions  permit.  I9i9' 

13.  Transformers. 

(a)  Transformers  mounted  within  and  forming  a  part 
of  the  signal,  shall  meet  the  insulation  tests  prescribed  in 
specification  for  single-phase,  air-cooled  track  trans- 
formers, operated  at  the  same  voltage.  They  shall  be 
provided  with  taps  to  take  care  of  the  variation  in  the 
voltage  supply,  as  specified  on  requisite  sheet.  i9i9' 

14.  ReSectors. 

(a)  Reflectors,  if  used,  shall  be  specified  on  requisite 
sheet  and  shall  be  so  arranged  as  not  to  give  phantom 
indications.  ^9^9- 

15.  Inspection. 

(a)  Plirchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  (S.  S.  6-a.)  1919- 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be 


'abmjoi  bus  8i>an3l  lo         bos  asie  9iiT'(B) 
9VBd  lisriB  abbn  ^^nsl  ^viiosi.:  (^D 


,    :zu[bB  9d  risrfa  sniinuoM  (s) 

.nmioqcnoinbaoo 

•  ^^nin,-    >bBil    bslooo-iiB  ,98sriq-9i?^"f^' 
■3  0  >C3rfT    .ssBtlov  9mB«-  9ri; 


mo  : 


-  ifvoiq 
-.ifov 

.810t3«>B9H  (b) 


.2) 

qmoD  and 


10  c.j.^L.  - 
01  lOOb 

9VBri  no.  ^  airi"^ 

.Qigi    (.d-d  ,8  .8) 
lo  Jnioq  1b  b^iq^ooh  >  , 
ion  89ob  it  ,noilBml89b  1b  IbvIiib  noqo  M  bns  ,noilD0boiq 
3d  ^{Bf^  li  ,noilB^fti^9q8  ""'^^  .  -      ^  '-^-^n 


,3iul3B3runsr- 
;ia^qcai   ^^.i:  ivsBdotu^  (d) 
la-^rfTg- tL'pdi  adl  Ifiril  animialab 
Jam  1193  d 
rt  lBh9lBrn  9rfl  H  (d) 


2  Signal. 
American  Railroad  Association.  Electric  Color 

Signal  Division.  Specification. 
— .   1919. 


15-C.    Inspection. — Continued. 

rejected,  and  the  Contractor,  upon  request,  shall  advise 
the  Purchaser  what  disposition  is  to  be  made  of  the  defec- 
tive material.  The  Contractor  shall  pay  all  freight 
charges.  (S.  S.  6-c.)  1919- 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1917- 

16.  Tests. 

(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919- 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 

17.  Material  and  workmanship. 

(a)  Material  and  workmanship  shall  be  first-class  in 
every  respect.  (S.  S.  5-a.)  1911. 

18.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor,  and  name  and  address  of  Consignee, 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919- 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents,  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.  1919- 

(c)  Where  car-load)  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.     (S.  S.  9-c.)  1919- 

19.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919. 

20.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of, so  as  to,  in  the  Contractor's  judgment,  affect  its 


.91{>i      (.D~d  .29SlBriD 

-cau  lo  niioq  31  i32Bi!oiU<I  H  (b) 

.Vigi    (.b-B  .8     i  .bdifiia  o8  ad  Ilsrfa  ii  ^obaub 

ao  lo  ,aoilauboiq      lnioq  iR  ^bsm       x^m  2ia3T  (b) 

,noiioubmq  lb  inioq  is  ,9bivoiq  Ilerfa  r  , 
:r:bf£i:  '  33i  baiiiipsi        gniiBXij  tol  lodsl  bxiB  BulBiBqqs 
'  .i98firioi0*I  »dJ  lo  fioiaiviaqixs 

ni  egfiiD-iaiit        uBda  qidanBraitiow  br  M  (s) 

.gniAiBM 

tjan^ianoD  lo  aze  msn  bns  ,ion§i8noO  io  aniBn 

.  jjro  no  basJiBxn  ^IhibIc  ' 

=519riW     .1X1911  ^d  flBrfg  ,2Jn3lnOD 

-BQShudbi  iBO  bns  ^niiuoi  namqidg  bBoi-iBO 

.d-e  .8  .3)  -wod^  ad  Osda  noli 

bnB  smBfi  ,3b6iii  aiB  slttdcriqirfaibBol-iBD  aidriW  (o, 

baJiimo  9d  XB«i  »^^^fS^^P  ^^^"^^ 

-lOD  iiiiii^q  q  oa  sd  Ilfida  iBiisiBM  (s) 

nnrt&.r-?       •••  .  -jotq  ot  brfp  grrHbttfid  in^'nov 

jtTiqirig  g 

vd  di  iaBitBw 

D  moil  S'-  "  ' 

iaiv-  gniad  \;insiifi.w  ziih  -ittbnu  aoii 

doiih  ;  isq  lO  iiBq  -^hb  .nor^Duboiq  lo 

-qli!!  itiJifi  i  .  lo  nidJiw  avito^iisb  bnuroi  ad  IlBda 

oj           jon  ■  -niBW  eirfT    .isgfidDiu^  adt  :•■ 

b<*i9:i  fB  iQ  he  .  3d  avsd  flBria  doxdw  2«te" 
-373dJ  i^iuioBi^xiBhi)^  ^ds  HsA^  tsdio  anOYxtB  ^d      .  v_:i., 
aii  loalB  .Inamsbot  g'toJoBTtaoO  f)di  ni  ,oi  8b  oa  3o 


American  Railroad  Association. 
Signal  Division. 


Signal. 

Electric  Color 
Light. 

Specification. 
1919. 


20-a.    Warranty. — Continued. 

proper  functioning  or  reliability,  nor  which  has  been 
subject  to  misuse,  negligence  or  accident. 

(S.  S.  lo-a.)  1919. 

21.    Requisites  for  electric  color  light  signal — A.  R.  A.  specification. 

(a)  Purchaser  to  fill  in  such  items  as  he  desires  to 
specify;  Contractor  to  fill  in  all  other  blanks,  so  that  the 
requisite  sheet  will  be  complete  when  finally  submitted 
with  Contractor's  quotation.  191 7- 

(b)  Identification: 

I.  Signals  covered  by  this  sheet  are  for  

Railroad  on  inquiry  order  

Requisition   Number  required  

1919. 

(c)  Weight: 

1.  Total  net  weight  

2.  Total  shipping  weight   1919- 

(d)  Signals  shall  be  furnished  in  accordance  with  draw- 
ings  1919. 


(e) 


Type: 

Indoor. 

Tunnel 

Outdoor. 

Bridge. 

Ground. 


Dwarf. 
Bracket  post. 
Highway  bridge. 
Suspended. 

Take  siding  indicator. 


(f)  Color  of  lenses: 


1919. 

Indication.. 


One  Arm, 

One 

(I) 

color 

Two 

(2) 

color 

Three 

(3) 

color 

Two  Arm, 

Top  arm, 

One 

(I) 

color 

Two 

(2) 

color 

Three 

(3) 

color 

Bottom  arm. 

One 

(I) 

color 

Two 

(2) 

color 

Three 

(3) 

color 

Three  Arm, 

Top  arm. 

One 

(I) 

color 

Two 

(2) 

color 

Three 

(3) 

color 

Middle  arm, 

One 

(I) 

color 

Two 

(2) 

color 

Three 

(3) 

color 

  p.-^nl 


03  (g) 


21 


-f. 


^  Signal. 
American  Railroad  Association.  Electiic  Color 
Signal  Division.  Specification. 
 ^  —  1919. 

Requisites  for  electric  color  light  signal,  A.  R.  A.  specifica- 
tion.— Continued. 

Bottom  arm.  One  (i)  color  

Two  (2)  color  

Three  (3)  color  

Dwarf,  One  (i)  color  

Two  (2)  color  

Three  (3)  color  

1919. 


(g)  Terminal  board  shall  be   I9i9- 

(h)  Background  and  hoods  for  outdoor  signals: 

1.  Are  these  required?  

2.  Distance  from  center  of  lens  unit  to  edge  of  back- 
ground  inches. 

3.  Distance  from  face  of  objective  lens  to  front  edge 
of  hood  inches.  iQiQ* 

(i)  Diagram: 


'  0 

;  0  1  ^^"'^ 

<^  OF  BOTTO 

1 

CAUCtLlNtOF  11 

Top  or  Founoation 

I9I9. 

(j)  Shall  signal  be  mounted  on: 

1.  Top  of  pipe?  

2.  Bracket  which  is  bolted  to  pipe?  

3.  Side  wall  or  roof  of  tunnel?  

4.  On  foundation  between  tracks  in  tunnel?  

1919. 


I 


b^unhttoO — .u' 


oloo  (s)  ov/T 
loldo  (e)  99irfT 
foIoD  (i)  anO 
-oloo  (c)  owT 


.e:3fi;jm  ■  ■  -  i<ti 

booil!  \o 


1  >' 


:iio  i>3inoom  ad  iBn^ig  Ilsiig  > 

 Saqiq  lo  qoT  .i. 

fqiq      h^^l^^      rf'>irlw  lajlDBiS  . 


American  Railroad  Association. 
Signal  Division. 


21.    Requisites  for  electric  color  light  signal,  A.  R.  A.  speci&ca- 
tion. — Continued. 

(k)  Lenses: 

1.  Diameter  inches. 

2.  Transmission:   R.S.A.  Standard. 

3.  Are  special  lenses  required  to  improve  spread  or 
close  range  indication  of  si^al?  


Signal. 

Electi'ic  Color 
Light. 

Specification. 
1919. 


4.  Special  lenses 


j  shall 


(  shall  not  S  ^^^^^^^^ 
prove  spread  or  close  range  indication  of  signal. 

1919. 


(1)   Range  under  bright  sunlight  conditions  feet. 

1919. 

(m)  Spread: 


HoRiroNT/i.'-  AwQue   of  5p«ead 

<  OFOiaTICAI- 
Axis  OF  LCMS 


Vertical  Angle  or  Sphcac 


1919. 


(n)  Lamps: 

Voltage  Watts  CP. 

Life  of  lamps  hrs.  at  

Tungsten   Carbon  

Bulb   Base  

Number  of  lamps  behind  each  lens  unit.  . 


volts. 


1919. 


9 


:  sdand J  (i) 

.aariDm   i3iafrtBia  .i 

MBbnsiS  :  rtoiaaitcignsiT  .s 

enoiiibrtoo  JrisHnwa  Jrighd  labnu  3sns5i 


...IB  .airf  .  -  gqmsl  io  aiiJ 
nodifiO  .nsJasnuT 
 diuQ 


7 

American  Railroad  Association 
Signal  Division. 


21.    Requisites  for  color  light  signal,  A.  R.  A.  specification. — Con. 
(o)  Transformer: 

Shall  signal  include  transformer?  

Primary  volts  Secondary  volts  

Cycles  Capacity  volt  amperes  

1919. 

(p)  Shall  reflectors  be  furnished?   igiQ- 

(q)  Inspection  or  tests: 

1.  Shall  inspection  or  tests  be  made  at  point  of  pro- 
duction, under  supervision  of  Purchaser?  

1917. 

2  days' notice  required  by  Purchaser  before 

apparatus  will  be  ready  for  inspection  or  tests. 

1916. 

3.  Shall  inspection  or  tests  be  made  at  destination 


by  Purchaser?   1918. 

4.  Shall  record  of  inspection  and  tests  as  furnished 

by  Contractor  be  accepted?   1919- 

(x)  Remarks   

  1916. 

(y)  Signed    1916. 

(z)  Date    19 1 6. 


Signal. 

Electric  Color 
Light. 

Specification. 


X 


,:^g93  10  ;  tol  x:bs9t  9d  Uiw  ciiiisifiqqB 

xoiiBiibs'ib  is  9bBm  9d  staM  to  notioaqani  nBriZ  .£ 

 <5i9aBil''7Tr^ 

35i  bnB  oohDsqani  lo  bioosT  nsfl^ 

2  JOB  3d  ioioBiitioO  \<- 
.......  ,  aslisrnsH  (»: 


I  Signal. 

Ameiican  Railroad  Association.  Position 

Signal  Division.  Light. 

—  _ — _ — —   '  Specification. 


SPECIFICATION  FOR  ELECTRIC  POSITION 
LIGHT  SIGNAL. 
1919. 

(Official  Approval  May,  1920.) 

Requisite  sheet. 

(a)  Requisite  sheet,  section  24,  attached  to  this  specifi- 
cation shall  form  a  part  thereof.         (S.  S.  4-a.)  1919- 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919- 

Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor  wishes 
to  vary  from  the  specification  a  tender  may  be  submitted 
covering  the  apparatus  he  desires  to  furnish.  This  tender 
shall  be  accompanied  by  full  information  showing  where- 
in the  requirements  of  the  specification  are  varied  from. 

(S.  S.  3-a.)  1919- 

Design. 

(a)  The  signal  shall  be  of  a  design  approved  by  the 
Purchaser.  i9i9- 
High  signal. 

(a)  The  high  signal  shall  be  made  of  lamp  units.  The 
distance  between  lamp  unit  centers  shall  be  as  specified 
on  requisite  sheet.  1919. 

(b)  Lamp  units  shall  be  assembled  on  framework  to 
provide  the  aspects  as  specified  on  requisite  sheet.  1919. 

(c)  Lamp  unit  receptacles  shall  be  v/eatherproof.  1919. 

(d)  Lamp  units  shall  be  mounted  in  such  a  way  that 
they  can  be  adjusted  individually  in  order  to  procure  the 
alignment  which  will  provide  for  satisfactory  signal  indi- 
cations. 1919. 

Dwarf  signal. 

(a)  Dwarf  signal  shall  consist  of  weather-proof  iron 
case  with  necessary  compartments  arranged  so  as  to  pro- 
vide the  aspects  as  specified  on  requisite  sheet.  1919- 

(b)  Terminal  boards  shall  be  made  of  treated  hard  wood 
not  less  than  one-half  (^)  inch  thick  or  as  specified  on 
requisite  sheet.  I9i9- 

(c)  Terminal  board  shall  be  located  so  as  to  be  easily 
accessible.  i9i9' 

(d)  Compartments  of  the  signal  shall  be  separated  by 
light  proof  barriers.  i9i9- 

(e)  Lamp  receptacles  shall  be  accurately  located  and 
held  rigidly  in  place.  1919- 


1919. 


laq  8!  notlqo 
0351  a'-jc: 


:§nhdvo:-j 


9d  llBds  lB£X8i«  driT  (b) 


J99ri8  9Jiaiup3i  no 

r  :.  L...iu.;.,.-:.o.:-  v..  ii.,- Kiinu  qmfiJ  (d) 
3ii8mp9T  HO  bsrlbixja  bk  aioaqas  arfl  abivoiq 
(>x  .io(jiqi3/iti:3W  sd  flfiria  t  linu  qmeJ  (o) 

yi^tw  f;  ^^orr^  tt  b^'tn.yorrt  plrrtrr  cjttiSwI  (b) 

..(lOiiBO 

.adifi^aw       leiatio'j  U&dz  iBiisia  iifiwQ  (b) 
03  ba-gnBiis  ^ijnamiisqrnoa  ^^iBagdoan  riiiw  38i 
•OT      .ts^Hf?:  ftif-^i'Tpst  0O  b?B.b9CtH  g«5  Si0-:?a3:i  srfi  sbiv 

MsT  (d) 

■..f  23 at  iou 

laT  (o) 
afdiagsoo: 
s  iioD  (b) 

,  o;  iBd  ^ooiq  irigs! 

.■.ia;>;>jii  ad  iifidfe  ctiioiij  qrnfiJ  (a) 


2  Signal. 

American  Railroad  Association.  S^^^?'^^ 

Position 

Signal  Division.  Light. 

  — — — —  —  — -   -  Specification, 

1919. 


6.  Framework  for  high  signals. 

(a)  Framework  shall  be  made  of  iron  and  designed  to 
provide  the  aspects  as  specified  on  requisite  sheet. 

1919. 

7.  Terminal  box  for  high  signals. 

(a)  Iron  terminal  boxes  shall  be  as  specified  on 
requisite  sheet.  iQiQ- 

(b)  Wires  from  lamp  units  shall  be  brought  to  term- 
inals in  the  terminal  box  as  shown  by  wiring  diagram. 

1919. 

8.  Wiring. 

(a)  Wiring  shall  be  neatly  arranged  and  securely  fast- 
ened. 1918. 

(b)  Insulated  wire  not  less  than  No.  14  A.W.G.  shall 
be  used  for  internal  wiring  of  case.  i9i9« 

(c)  A  wiring  or  connecting  diagram  shall  be  located 
in  a  conspicuous  place  in  the  case.  1918. 

(d)  All  wiring  shall  terminate  at  binding  posts.  1919. 

9.  Insulation. 

(a)  Material  used  for  insulation  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 

(G.  E.  R.  32-b)  1917. 

10.  Range. 

(a)  The  range  in  daylight  under  bright  sunlight  con- 
ditions shall  be  determined  when  lamps  are  operating  at 
the  wattage  and  candle-power  stated  on  requisite  sheet. 

1919. 

11.  Spread. 

(a)  The  visual  spread  shall  be  as  specified  on  requisite 
sheet.  1919- 

12.  Lens. 

(a)  Lenses  shall  be  of  the  type,  size  and  focus  as  speci- 
fied on  requisite  sheet.  1919- 

(b)  Lenses  shall  be  made  of  clear  flint  glass.  1919. 

13.  Lamps. 

(a)  Lamps,  if  furnished,  shall  be  of  the  type  and  elec- 
trical characteristics  as  specified  on  requisite  sheet. 

1919. 

14.  Cover  glass  for  high  signal. 

(a)  Cover  glass  of  "no  glare"  tint  shall  be  furnished 
with  each  lens.  I9i9' 

(b)  Cover  glass  shall  be  of  such  a  shape  and  arranged 
so  as  to  prevent  false  indications  being  given  due  to  light 
reflections.  I9i9« 


Muf^iH  ft 


no   baniD^qa         dd   Umi;  lEnimial    rtoil  (b)  , 

-rfn»*  ot  id^woid  ad  Jffiria  aiinu  qinsl  moii  eatiW  (d) 

i2Si  bJriB  b»3nBi-sB  ^jlJE^n  ad  Hsria  §nniW  (b) 

IlBria  .D.V''.  ^  ^  i  .oM  niril  aaat  ton  miw  batsluanl  (d) 
.QiQi  .9gBo  lo  ^nhiw  Ismatni  lolt  baeu  dd 

h9tB30l  is:  .i.  iic  rnBigBib  snboannoo  to  gnhiw  A  (d) 
,BiQi  ,38BD  atii  ni  aoBlq  auowoiqanoD  b  ni 

,()i(yr    alaoq  gnibnid  )b  QiBnimist  If Kria^ni-iiw  11 A  (b) 

UiW  8B  rioua  ad  IlBiia  noitBlnani  lol  baau  iBiiaiBM  (b) 
.anoitibno'j  Diiadqaom^B  yd  batoalftB  1  ior 

.^TOT-    (d-££  .H  .3  .0) 

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■^B  ^niJBiaqo  dis  aqmBi  nariw  banirmtjlab  ad  ilfirfa  anoiiib 
^Jiampai  no  baiBla  lawoq-albnBa  bns  agBtJBv/  . 

.La's! 

r  '  .!  ,M  fio  bfvfiioaqa  a£-  sd  IlB-rfa  bsaiqa  iBuaiv  arfT  (b) 

■.taaii'r' 

-haqa  as  3ur>ol  bnB  ©sia  ,3qY^  ^d*      ^d  Ilfirfa  aaanaJt  (i ) 
.  T-,  ,  Joaria  aliaiupai  no  bsn 

^(j.;  .  -frip  ';b':^r'T  3<f  Ilsrfa  aaantjJ  (d) 

-rjyls  bnt;  ijqv:!  artl  io  ad  ilBfia  ,bailainiiji  ii  .aqmfiJ.  (b)         . . 
.^aarf?..  -ihlrrpai  no  b-^^baq?:  3R  s'.hahMnBtfjffo  rs^iit 

bariaimul  id  Hfirfa  init  "aislg  on"  io  aasfs  lavoD  (s) 

bagnaiiB  bnB  aqBria  b  riona  lo  ad  IlBria  aaBl^  lavoD 
trisii  oi  aub  navi^  ^niad  anoitsoibni,  asffil  tnavaiq  ol  o^: 


3  Signal. 
American  Railroad  Association.  Position 
Signal  Division.  Light. 

—  — — - — —  — -"^ — — — °~  —  Specification. 

1919. 


15.  ReHector  for  high  signal. 

(a)  Each  lamp  shall  be  provided  with  a  reflector  in- 
stalled in  such  a  manner  as  to  increase  the  spread  of  light 
in  a  vertical  plane  to  improve  the  close  range  indication. 

1919. 

(b)  Reflector  shall  be  arranged  so  as  not  to  give  phan- 
tom indications.  1919. 

16.  Background  and  hood. 

(a)  A  background  shall  be  furnished  for  each  arm  of 
high  signal.  The  background  shall  be  made  of  black  sheet 
iron  or  steel  of  a  thickness  of  not  less  than  three  sixty- 
fourths  (3/64)  inch  and  painted  a  dull  or  flat  black.  The 
outer  edges  shall  not  come  closer  than  eight  (8)  inches  to 
the  center  of  a  light  unit.  1919- 

(b)  A  hood  shall  be  furnished  for  each  lamp  unit  of  a 
high  signal  and  over  each  lens  of  a  dwarf  signal.  1919. 

(c)  Hood  for  lamp  units  of  a  high  signal  shall  be  made 
of  sheet  iron  and  shall  be  not  less  than  eight  (8)  inches 
long  and  shall  extend  more  than  half  way  around  the  lens 
opening.  I9i9« 

(d)  Hood  for  dwarf  signals  shall  be  made  of  iron  and 
shall  be  not  less  than  two  (2)  inches  long  and  extend  more 
than  half  way  around  the  lens  opening.  1919. 

(e)  Hood  shall  be  designed  so  as  to  minimize  the  likeli- 
hood of  snow  and  ice  accumulating  on  the  cover  glass. 

1919. 

17.  Mounting. 

(a)  Mounting  shall  be  adjustable  so  as  to  provide  the 
range  as  stated  on  requisite  sheet,  and  at  the  same  time 
give  as  good  a  close  range  indication  as  other  limiting 
conditions  permit.  iQiQ- 

18.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.  (S.  S.  6-b.)  1919- 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition,  is  to  be  made  of  the  defective 
material.   The  Contractor  shall  pay  all  freight  charges. 

(S.  S.  6-c.)  1919- 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1917. 


» J I  *,,:>  U  J.. 


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>       -  Jfinsis  .      aiTi;  qaiiil  ^ol  booH  (o) 

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.^ntnaqo  , 

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diom  bjn;5;     ;      gnol  aedoni  (s)  owl  tmdi  aaal  ton  If 

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-eteT..  .  ^ 

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9  .2  .8)  .^im-jBluiism 
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.Qiqi    (,d-a  ,8  .a)  .J^m  n^3cr 

lo  Jnioq  Jb  b^iqsooB  £md  ion  3sd  IshdiBm  arfi  il  (d) 
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aviioalab  adt  lo  ^bsm  skJ  oi  ai  nohiaoqaib  isriv/  •jjjEBdour^ 
^^jgifido  Idsiai'i  IIb        ^f^da  loJoBWnoD  ariT 

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.-TOT    r.b  d  8  g")  .bjjiBJg  oa  ad  flBda  .o'^itaidi 


4  Signal. 
American  Railroad  Association.  Position 
Signal  Division.  Light. 

 ^ —  —  Specification. 

1919. 


19.  Tests. 

(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 

20.  Material  and  workmanship. 

(a)  Material  and  workmanship  shall  be  first-class  in 
every  respect.  (S.  S.  5-a.)  1911. 

21.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor  and  name  and  address  of  Consignee 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919- 

(b)  Detail  list  of  loose  pieces,  containers  and  their  con- 
tents, shall  be  furnished  for  each  shipment.  Where  car- 
load shipments  are  made,  routing  and  car  identification 
shall  be  shown.  (S.  S.  9-b.)  1919. 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  9-c.)  1919. 

22.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  i9^9' 

23.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of, so  as  to,  in  the  Contractor's  judgment,  affect  its  proper 
functioning  or  reliability,  nor  which  has  been  subject  to 
misuse,  negligence  or  accident.         (S.  S.  lo-a.)  1919- 


noil    /  ^  .noV?'vviCl  Isn^'iZ 


ac  10  ,noh»uboiq.      inioq  iB  ^bsm  ad  XBin  eiasT  (s) 
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.QIQJ  .3  .8) 

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.gniJaal  lol  vbsai  ad  Iliw  iBiialem  Ksdw  ami?  lo  aodor; 
.QiQi    (.d^v  .8) 
aoJjDuboiq  3:o  inxoq  ifi  .abivoiq  iSarid  •xoJ3£Tlao3  {» 
labni/  E^aai  bairapai  adi  gnUBm  tol  lodsl  bns  HnJBiBqqs 

ni  BaBb.-l3.a  ad  iI.oifa  qia.rti.^:..  ......  bns  Isha^sM  (s) 

(.E-s,8.a)  Joaqaai  x^av. 

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.93£rfo6q      abiatuo  no  bsjIiBm  xiwi^t^l  UBrie 

~no;3  ibiii  bns  aianlBinoo  ,8aaaiq  aeool  lo  t2H  IiBiaCI  ,d) 
-IBO  aiariW    Jnamqirie  rfosa  lol  barf«iniul  ad  JIbiIz  ,ainaj 
aohBoailftabJ  iBo  bns  gui^roi  .f.b.m  ax.  ainamq.rfa  bsol 

QiGi   (.d-e  .a  .8)  -^'^^^^ 

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tnB  iBh^JBm  ni  sJa^i^b  moii  .sii  ad  oJ  no.JBaaxcaqa  a..b 
-Bvildo  aid  .aoivAa  bas  san  r-snibio  «bnu  q.ri8aBxnrf«w 

d3iril  aaorf,  aoBlqa.  ot  a,,Bq  .o  nsq  .hb  .-mubo,q  io 
-qida  «JlB  .Ba^  d)  ano  md,iw  av.l^iab  bt-uol  a.  ..Bria 
01  vlqqB  lort  IlBria  ^WBtiBW  airiT  .".aaBrioiuq  art*  o*  tnam 
baTaj"  lo  baiiBqaT  naad  avBri  IlBria  riairiw  autBiBqqB  inB 
-aiariJ  laiuJsBionBM  aril  itJidJ  tarfJo  aflo^nB  yd  '{Bw  xns  m 
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.eioi    (.E-oi  .8  -?.)         .ina&b=t  to  asnaailsan  .aauaim 


5 


Signal. 


American  Railroad  Association. 

,     .  .  .  Position 
Signal  Division.  Light. 

 — ~  —  —  — — — =  Specification. 

1919. 

24.    Requisites  for  electric  position  light  signal,  A.  R.  A.  specifica- 
tion. * 
(a)  Purchaser  to  fill  in  such  items  as  he  desires  to 
specify.    Contractor  to  fill  in  all  other  blanks  so  that  the 
requisite  sheet  will  be  complete  when  finally  submitted 
with  Contractor's  quotation.  I9i7« 

(b)  Identification: 

I.  Signals  covered  by  this  sheet  are  for  R.  R. 

on  inquiry   Order   Requisition  

Number  required   19 19. 

(c)  Weight: 

1.  Total  net  weight  

2.  Total  shipping  weight   1919. 

(d)  Signals  are  to  be  furnished  in  accordance  with  the 
following  drawings  ,  

1919. 

(e)  Type: 
Bridge. 
Ground. 
Dwarf. 

Bracket  Post. 
Highway  Bridge. 
Suspended 

Take  siding  indicator.  1919. 

(f)  Aspect.  Indication. 


One  Arm,  One  (i)  position 

Two  (2)  position 

Three  (3)  position 

Four  (4)  position 

Two  Arm, 

Top  Arm,  One  (i)  position 

Two  (2)  position 

Three  (3)  position 

Four  (4)  position 

Bottom  Arm,  One  (i)  position 

Two  (2)  position 

Three  (3)  position 

Four  (4)  position 

Three  Arm, 

Top  Arm,  One  (i)  position 


Two  (2)  position   

Three  (3)  position   

Four  (4)  position   

1919. 


rnoitsofiBnabl  (d) 


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...  b^iiwpai  ladmuVI 

 jrfsiaw  ian  IbIoT  i 

a:  rf^  »nBfc,o,oB      b«.«n«rt  ,d 


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(1) 


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rmA  9nO 


^inA  owT 
,miA  qoT 


nA  moJioFi 


^lA  qcT 


American  Railroad  Association. 
Signal  Division. 


Signal. 

Electric 
Position 
Light. 

Specification. 
1919. 


24.    Requisites  for  position  light  signals,  A.  R.  A.  specification. — Con. 

(g)  Terminal  boards  shall  be   1919. 

(h)  Shall  signals  be  mounted  on  existing  poles?  ; 

if  so,  state  size  of  pipe  inches.  1919. 

{One  arm  signal  
Two  arm  signal  
Three  arm  signal  

1919. 

(j)  Height  from  top  of  foundation  to  common  light 
 feet  inches.  1919. 

(k)  Lamp  Units: 

1.  Number  of  Lamp  Units  per  indication  

2.  Distance  between  center  of  lamp  units  


(1) 


Lamps : 

Voltage  Watts  C.  P. 

Life  of  lamp  hrs.  at  volts  

Tungsten   Type  

Bulb   Base  


(m)  Lenses: 

Type   

Size   

Focal  length  inches. 

(n)  Range  under  bright  sunlight  conditions. 
 feet. 


(o)  Spread: 


1919. 


1919. 


1919. 


1919. 


Track'' 

HoRIZONTAt.  AmCLE  OP  Sp>WEAO 


^orOPTiCAL 

Axis  Of 
CommomLickt 


 DfQR£e.S 

Verticac  Ancle  orSf»«EAo. 


I9I9. 


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.0101 


f&girtiominoD  or  nohfibnijoi  Irfs^H  (0 

^qmsJ  (I) 
..ailcv  IB  .siri  '  .  io  sHJ 


7 

American  Railroad  Association 
Signal  Division. 

•  spetmcaiiuii. 

1919. 

24.    Requisites  for  position  light  signals,  A.  R.  A.  speciEcation. — Con. 

(p)  Inspection  or  Tests:  , 

1.  Shall  inspection  or  tests  be  made  at  point  of  pro- 
duction under  supervision  of  Purchaser?  

1919. 

2  days  notice  required  by  Purchaser  before 

apparatus  will  be  ready  for  inspection  or  tests.  1916. 

3.  Shall  inspection  or  tests  be  made  at  destination 
by  Purchaser?   1918. 

4.  Shall  record  of  inspection  and  tests  as  furnished 
by  Contractor  be  accepted?   1918. 

(x)  Remarks   


Signal. 
Electric 
Position 
Light. 


(y)  Signed 
(z)  Date  . 


1916. 
1916. 
1916. 


.iri'^^iJ   ~  1  


:^t2oT  "to  noiJadqanl  (q) 


bsnslS  (x) 
.  9iBa  (s) 


American  Railroad  Association.  standard 
Signal  Division.  Sections. 
  —  _  1919. 


STANDARD  SECTIONS  FOR  USE  IN  UNIT  SPECIFICATIONS. 

1919. 

(Official  Approval  May,  1920.) 

1.  Purpose.* 

(a)  The  purpose  o£  this  specification  is  to  provide  for 
  1919. 

2.  Drawings. 

(a)**  Purchaser's  drawinigs  accompanying  this  specifica- 
tion and  forming  an  essential  part  thereof,  are  as  follows: 


  1919- 

(b)**  Contractor's  drawings  accompanying  his  tender 
and  forming  an  essential  part  thereof  are  as  follows:. .  . . 


  1919. 

3.  Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor  wishes 
to  vary  from  the  specification,  a  tender  may  be  submitted 
covering  the  apparatus  he  desires  to  furnish.  This  tender 
shall  be  accompanied  by  full  information  showing  where- 
in the  requirements  of  the  specification  are  varied  from. 

1919. 

4.  Requisite  sheet. 

(a)  Requisite  sheet,  section   ,  attached  to 

this  specification,  shall  form  a  part  thereof.  1919- 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed.  1919- 

5.  Material  and  workmanship. 

(a)  Material  and  workmanship  shall  be  first-class  in 
every  respect.  1911. 

6.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  i9i9- 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.    ^9^9- 

*To  be  used  where  title  does  not  fully  describe  the  intent  of  the 
specification. 

**Sections  may  be  made  a  part  of  the  requisite  sheet. 


.ttoiiaVoo.; 


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.19  L 

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A»  bnB  Ifih^JEM  (b) 

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:a:i  srfi  ^^^q^^^         i3<i£ii:>iy'.t  (b) 

ot  iDuboiq  baldlqmoo  sdi  ioaqant  -^sm  laasdoio*!  (d) 

,0TPT  '^SI^ 


i3^ni  3di  ddiioaab  '^cllwl  ion  89ob  sliii  »i»rfw  baeu  dd  oT* 

.xtohfiaribaqa 


\ 


2 

American  Railroad  Association,  ^  , 

„ .  Standard 

Signal  Division.  Sections. 

 ^  _ —  . — jgjjj^ 


6.    Inspection. — Continued. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production  and  i£,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defective 
material.    The  Contractor  shall  pay  all  freight  charges. 

1919. 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  1917- 


7- 


Tests. 


(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

1919. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  wher.  material  will  be  ready  for  testing. 

1919. 

(c)  Contractor  shall  provide  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  1919- 

8.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  1919- 

9.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor,  and  name  and  address  of  Consignee, 
shall  be  plainly  marked  on  outside  of  package.  1919- 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identification 
shall  be  shown.  1919- 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.  1919- 

10.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of, so  as  to,  in  the  Contractor's  judgment,  affect  its  proper 
functioning  or  reliability  nor  which  has  been  subject  to 
misuse,  negligence  or  accident.  1919- 


.UO' 


.L:iJiiliJ-iO  J  .lAvl^O^qZ! 

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jijia  08  dd  Hr  iii^ 


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.Qiei  : 

baiiixpsi  ^di  aniism  lol  lodsl  bns  80iBiBqqi 
■^mudo^iss^  '     '  oiaiviaqoa 

■  .-^nu, 

~noj  iimiaq       ss  bsiijqaiq  or  ad  Hfidi  ii^  iitcM  (e) 

.ladmjxn  a^eslasq  bnB  nohiaiupai  ,iabio  a'lsaBdDiti*?  (s) 
^^sr^iznc'  «ibbB  bnB  amsn  bnB  ^longknoD  artiEC 

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liarit  b/m  aiiiiiisJnoD  .Baoaiq  aaool  lo  iail  lifiisa  (d) 
aiadW    .ifxamqida  ibss  loi  badainiu^  ad  Ilsria  ainalnc. 
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gj^j  .riworia  ad  Ilfid^ 

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A  T  ,»■_>  T 

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briB  IsiialBin  ni  ala^jlab  moii  aai^:  :  (baqa  aidi 

-B§iIdo  aid  ,aDiv-.aa  bnB  aaw  ^iBnibio  labnu  qidaftsnxilioy 
jnioq  tB  .snHBxn  oJ  ba^imil  igniad  ^tnBiiBw  airft  labnw  xioh 
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.q  sa^  (i)  ano  nidliw  3  "        ^  bmsol  ad  Hfida 

.  IlBria  xmBim  srfJT  ad*  oi  inarn 

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.nipr  abiooB  10  aonasii: 


I 

American  Railroad  Association.  ^^P^*. 

.            .  .  ,  X*  riction. 
Signal  Division.  Specification. 
 —  —  —   1919. 


SPECIFICATION  FOR  FRICTION  TAPE. 

1919. 

(Official  Approval  May,  1920.) 

1.  General. 

(a)  Tape  shall  be  made  of  cotton  sheeting  which  is 
thoroughly  impregnated  on  both  sides  with  a  friction  rub- 
ber compound.  The  edges  of  the  tape  shall  be  straight 
and  the  width  even.  No  pin  holes  should  be  observable 
when  the  tape  is  held  before  a  strong  light.  1914. 

(b)  Unless  otherwise  specified,  the  tape  shall  be  three- 
fourths  (34)  inch  in  width.  1919- 

2.  Friction  rubber  compound. 

(a)  The  compound  shall  have  a  rubber  base  and  be  of 
the  strength  and  insulating  qualities  required  ito  meet  the 
specified  physical  and  electrical  tests.  1914- 

(b)  The  compound  shall  be  free  from  active  sulphur  or 
other  substances  which  will  act  injuriously  on  copper  or 
the  cotton  tape.  1914. 

3.  Cotton  sheeting. 

(a)  The  cotton  sheeting  from  which  the  tape  is  made 
shall  be  v^eil,  evenly  and  firmly  woven  from  good  cotton 
and  free  from  defects,  dirt,  knots,  lumps  and  objection- 
able irregularities  of  twist.  The  warp  of  the  fabric  shall 
extend  lengthwise  when  unwound  from  the  original  roll. 

1914. 

4.  Tests. 

(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919- 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919- 

(c)  Contractor  shall  provide  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919- 

(d)  Tests  shall  be  made  from  samples  taken  from  any 
part  of  any  roll.  1919- 

5.  Physical  tests  for  tape  three-fourths  (3/4)  inch  width. 

(a)  The  finished  tape  shall  be  unwound  from  the  or- 
iginal roll  and  at  a  temperature  of  seventy  (70)  degrees 
F.  (21°  C)  in  an  atmosphere  maintained  at  approximaJtely 
seventy  (70)  degrees  F.  (21°  C),  v/ourd  in  concentric 
layers  for  a  distance  of  fourteen  (14)  inches  at  the  rate  of 
twelve  (12)  inches  in  two  (2)  minutes  upon  a  one-fourth 
(^)  inch  mandrel  under  a  tension  of  seven  and  one-half 


• ;.  Hod  no  ■ 

aslpfi  n  /  arfJ  bn- 

  ■..  jdv^UT.  •;- 

v.,  id  103  3r{T  (b) 


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■  oiq  io  '  '         ■  .9bi voiq' :  lifiH-  '-^o^ 

,070  •  '  . 


2 

American  Railroad  Association. 
Signal  Division. 


5-a.    Physical  tests  £or  tape  three-fourths  (3/4)  inch  width. — Con. 

ilVz)  pounds.  The  mandrel  shall  have  ball  bearings  thirty- 
nine  hundred  thirty-seven  ten-thousandths  (.3937)  inch 
diameter  of  bore  and  be  adjusted  to  turn  freely  with 
a  weight  of  twenty-two  (22)  grams  suspended  from  a  cot- 
ton string  wound  in  a  single  layer  on  center  of  mandrel. 

1919. 

(b)  After  winding,  the  tape  shall  stand  for  three  (3) 
minutes  with  the  seven  and  one-half  (7^/2)  pound  weight 
attached  and  shall  then  be  unwound  under  a  tension  of 
three  (3)  pounds.  1919. 

(c)  The  adhesion  between  the  plies  shall  be  such  that 
the  rate  of  unwinding  after  two  (2)  inches  have  been  un- 
wound shall  not  exceed  eight  (8)  inches  in  three  (3) 
minutes.  I9i9« 


Tape. 

Friction. 

Specification. 


6.    Tensile  strength  for  tape  three-fourths  (3/4)  inch  width. 

(a)  The  tensile  strength  of  the  tape  shall  be  not  less 
than  thirty  (30)  pounds.  19 19. 

(b)  The  test  for  tensile  strength  shall  be  made  on  a 
piece  of  tape  twelve  (12)  inches  in  length  between  grips 
and  stretched  at  the  rate  of  ten  (10)  inches  per  minuite. 

1919. 


7.    Heat  tests  for  tape  three-fourths  (3/4)  inch  width. 

(a)  A  strip  of  tape  eighteen  (18)  inches  in  length, 
taken  from  the  original  roll,  shall  be  exposed  to  a  dry 
heat  of  approximately  two  hundred  and  ten  (210)  degrees 
F.  (99°  C.)  for  sixteen  (16)  hours.  1919- 

(b)  Upon  removal  from  the  heat,  wiith  the  tape  at  a 
temperature  of  seventy  (70)  degrees  F.  (21°  C.)  and  in 
an  atmosphere  maintained  at  approximately  seventy  (70) 
degrees  F.  (21°  C),  it  shall  be  wound  in  concentric  layers 
for  a  distance  of  fourteen  (14)  inches  upon  the  one-fourth 
{%)  inch  mandrel  at  a  rate  of  twelve  (12)  inches  in  two 
(2)  minu'tes  under  a  tension  of  seven  and  one-half  (7^) 
pounds.  1919- 

(c)  After  winding,  the  tape  shall  stand  for  three  (3) 
minutes  with  the  seven  and  one-half  pound  weight 
attached  and  shall  then  be  unwound  under  a  tension  of 
one  and  one-half  (1%)  pounds.  1919. 

(d)  The  adhesion  between  the  plies  shall  be  such  that 
the  rate  of  unwinding  after  two  (2)  inches  have  been  un- 
wound shall  not  exceed  eight  (8)  inches  in  three  (3) 
minutes.  1919- 


.TXO-J  . 


'1 1  rt  ; 


.abriuoq  <c, 
dign^I  ni  asifDni  (si)  avlawl  sqsi  lo  aoaiq 


Dili  J. 


3n.o  bdB  ano 


American  Railroad  Association.  FrfcUon. 

Signal  Division.   ^Specification. 

  1919. 


8.  Electrical  test. 

(a)  The  tape  shall  stand  a  potential  strain  o£  one  thous- 
and (looo)  volts  (effective  value)  sixty  (60)  cycles  ap- 
plied for  one  (i)  minute  by  passing  a  section  of  tape  be- 
tween two  brass  ball  electrodes,  each  three-fourths  (^) 
inch  diameter.  The  electrodes  shall  be  spaced  so  that 
tape  will  just  move  between  them.  1919- 

(b)  The  voltage  shall  be  gradually  increased,  after  tape 
has  been  placed  between  electrodes,  until  limiting  value 

.  is  attained.  ^919- 

9.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages 
of  manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met,  (S-  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  pomt  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defective 
material.   The  Contractor  shall  pay  all  freight  charges. 

(S.  S.  6-c.)  1919- 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1917. 

ID.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919. 

(b)  The  tape  shall  be  furnished  in  rolled  strips  havmg 
the  following  dimensions  and  weight : 

Width            Approximate  Minimum  Length  VVeight  per 

Inches              thickness                  per  pound  roll,  pounds 

.015                                ft.  0.33 

34                    .015                       90      ft.  0.5 

1  .015                       67.5  ft.  0.67 

.015  45     ft.  1.0 

2  .015  33     ft.  1-34 

1919. 

(c)  Each  roll  shall  be  enclosed  in  a  tin  box  or  wrapped 
in  tin-foil  and  enclosed  in  a  box  to  secure  and  fully  pro- 
tect the  contents. 

(d)  Each  package  shall  contain  the  full  specified  weight 
of  tape,  exclusive  of  wrapping  and  boxes,  and  shall  be 
marked  with  the  Manufacturer's  name,  width  of  tape  and 
its  weight.  ^9^4. 


Uontt>9ia.  .8 

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'        c  ajioian^jnib  gniwoilol  adt 

'ai 


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l^igj  .alnainoD  ad*  *Da^ 

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ad  IlBda  bnB  ,8axod  bns  sniqqeiw       aviauloxa  ,aqB^  lo 


American  Railroad  Association.  Frhition 

Signal  Division.  Specmc'Ltion. 
.  -—  —  1919. 

II.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor,  and  name  and  address  of  Consignee,  ^ 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

(x)  Remarks   

  1916. 

(y)  Signed   1916. 

(z)  Date   1916. 


.oiei 


iiemdH  (at) 


I  Transformer 

American  Railroad  Association.  Single-phase, 

c.  •      J  i->  •  •  •  Air-cooled 

Signal  Division.  Track. 

~"  Specification. 

1919. 

SPECIFICATION  FOR  SINGLE-PHASE,  AIR-COOLED  TRACK 

TRANSFORMER.  > 
1919. 

(Official  Approval  May,  1920.) 

1.  Requisite  sheet. 

(a)  Requisite  sheet,  section  18,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.         (S.  S.  4-a.)  1919. 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

2.  Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor  wishes 
to  vary  from  the  specification,  a  tender  may  be  submitted 
covering  the  apparatus  he  desires  to  furnish.  This  tender 
shall  be  accompanied  by  full  information  showing  where- 
in the  requirements  of  this  specification  are  varied  from. 

(S.  S.  3-a.)  1919. 

3-  ^ype. 

(a)  Transformers  may  be  of  the  core  or  shell  type. 

1918. 

(b)  Transformers  shall  be  air-cooled  and  designed  for 
either  indoor  or  outdoor  service  as  specified  on  requisite 
sheet.  1918. 

(c)  Transformers  shall  be  designed  for  either  wall  or 
shelf  mounting.  1918. 

4.  Frequency. 

(a)  Transformers  shall  be  designed  for  frequency 
specified  on  requisite  sheet.  1918. 

5.  Rating. 

(a)  Transformers  shall  have  a  continuous  k.v.a.  rating 
equal  to  the  sum  of  the  ratings  of  all  of  the  secondaries, 
as  specified  on  requisite  sheet.  1918. 

6.  Windings. 

(a)  The  voltage,  k.v.a.  capacity,  power  factor  and 
other  data  regarding  the  load  on  the  separate  windings, 
shall  be  as  specified  on  requisite  sheet.  1918. 

(b)  Voltages  specified  on  requisite  sheet  shall  be  based 
on  full  load  operation  at  the  power  factor  specified. 

1918. 

7.  Voltage  diagram. 

(a)  Diagram  showing  the  total  full  load  voltage,  tap 
voltages,  and  k.v.a.  capacity  of  each  winding  and  the 
relative  or  instantaneous  polarities  of  the  leads  shall  be 
securely  attached  to  each  transformer.  ^9^9- 


.u.. ......  .^.^ 


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,  ai  IIul      bs  -  3d  Hfiri.^ 

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:  ^      ..  bafooa-iie  s  jimolanfiiT  (. 

5j  ^lijpai  «o  buftioaqe  SB  saiviae  loobiwo  lo  loobai 


■11 


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2  Transformer 

American  Railroad  Association,  Smgle-pliase, 
_ .  Air-cooled. 
Signal  Division.  Track. 

Specification. 
1919. 


8.  Leads  and  terminal  boards. 

(a)  Terminal  boards  shall  be  made  of  treated  hard 
wood  not  less  than  one-half  (5^)  inch  thick  or  as  specified 
on  requisite  sheet.  1918. 

(b)  Terminal  boards  shall  be  located  so  as  to  be  easily 
accessible.  1918. 

(c)  Leads  from  windings  shall  be  brought  to  and  uni- 
formly arranged  on  a  terminal  board.  1918. 

(d)  Where  the  winding  conductor  is  of  smaller  cross 
section  than  No.  14  A.  W.  G.  a  flexible  or  strip  conductor 
of  not  less  than  No.  i5  A.  W.  G.  conductivity  shall  be  used 
from  winding  to  the  terminal  post.  i9i9' 

(e)  Binding  posts  on  the  terminal  board  shall  conform 
to  R.  S.  A.  1070.  They  shall  be  so  arranged  that  they 
will  be  separated  by  not  less  than  three-eighths  (Ys)  ii^-ch 
air  space.  i9i§' 

(f)  The  instantaneous  external  polarities  of  v/indings 
shall  be  indicated  by  plainly  marking  the  relative  positive 
and  negative  leads  from  each  winding.  They  shall  be  de- 
termined as  follows: 

1.  The  positive  terminal  of  the  primary  winding 
shall  be  arbitrarily  indicated.  iQi?- 

2.  The  positive  terminal  of  a  secondary  winding 
will  then  be  that  terminal  from  which  current  is  flow- 
ing out  to  the  load  at  the  instant  when  current  is 
flowing  into  the  positive  terminal  of  the  primary 
winding.  I9i7« 

(g)  All  transformers  of  a  given  type  and  manufacture 
shall  be  arranged  so  that  the  instantaneous  polarities  of 
corresponding  leads  are  as  shown  on  requisite  sheet. 

1917. 

9.  Core. 

(a)  The  core  shall  be  of  non-aging  laminated  sheet 
steel  so  assembled  that  no  buzzing  is  perceptible.  igiQ- 

(b)  The  steel  shall  be  considered  non-aging  provided 
aging  co-efficient  does  not  exceed  one  and  three-hun- 
dredths  (1.03)  after  subjecting  the  steel  to  a  continuous 
temperature  of  one  hundred  (100)  degrees  C.  (212°  F.) 
for  a  period  of  thirty  (30)  days.  1919* 

10.  Insulation. 

(a)  Coils  and  windings  shall  be  of  cotton  or  silk- 
covered  wire  impregnated;  of  enameled  wire,  or  as  shown 
on  requisite  sheet.  Enameling  or  impregnation  shall  be 
in  accordance  with  R.  S.  A.  specifications. 

(G.  E.  R.  32-a.)  1919. 


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(.8-aE       a  ^ ' 


2  Transformer 
American  Railroad  Association.  A^Sooler^' 
Signal  Division.  Track. 


'Specification. 
1919. 


10.  Insulation. — Continued. 

(b)  Material  used  for  insulation  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions. 

(G.  E.  R.  32-b.)  1917. 

11.  Dielectric  requirements. 

(a)  Unless  otherwise  specified,  electric  apparatus  as- 
sembled shall  withstand  for  one  (i)  minute  an  insulation 
test  at  place  of  manufacture  of  three  thousand  (3000) 
volts  a.c.  between  ail  parts  of  electric  circuits  and  other 
metallic  parts  insulated  therefrom. 

(G.  E.  R.  30-a.)  1919- 

(b)  A  surface  leakage  distance  of  not  less  than  three- 
eighths  (%)  inch  shall  be  provided  between  any  exposed 
metallic  part  of  the  apparatus  carrying  current  and  any 
other  metallic  part  thereof.        (G.  E.  R.  30-b.)  1919- 

(d)  A  potential  of  tv/ice  the  normal  operating  require- 
ments at  a  suitable  frequency  shall  be  impressed  across 
the  windings  without  any  excessive  flow  of  current  indi- 
cating a  short  circuit.  (G.  E  R.  30-d.)  1919- 

12.  Tests. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 

(d)  Tests  shall  be  made  as  specified  on  requisite  sheet. 

1917. 

(e)  Tests  enumerated  below  shall  be  made  on  all  the 
transformers. 

1.  Exciting  current.  1918. 

2.  No  load  voltage  ratio.  1918. 

3.  Polarity.  1918. 

4.  Short  circuit  (high  frequency  test).  1918. 

5.  Dielectric  strength.  1918. 

(f)  The  following  tests  shall  be  made  on  the  first  two 
transformers  of  new  characteristics.  1919- 

1.  Core  loss.  1918. 

2.  Copper  loss.  1918. 

3.  Regulation.  1918. 

4.  Temperature  rise.  1918. 

5.  Full  load  voltage  ratio.  1918. 

13.  Description  of  tests. 

(a)  Core  loss. 

Core  loss  and  exciting  current  shall  be  taken  at  any 
convenient  ambient  temperature,  preferably  not  less  than 
fifteen  (15)  degrees  C.  (59°  F-)-  The  core  loss  shall  be 
measured  with  the  watt  meter  at  normal  frequency  and 
voltage  using  power  from  a  generator  giving  sine  wave, 
when  such  is  available.  When  a  pure  sine  wave  is  not  avail- 


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4 

American  Railroad  Association. 
Signal  Division. 


Transformer 
Single-phase, 
Air-cooled. 


13.    Description  of  tests. — Continued. 


Track. 

Specification. 
1919. 


able,  it  shall  be  permissible  to  use  any  wave  form  which 
comes  within  the  A.  I.  E.  E.  definition  o£  a  sine  wave, 
adjusting  the  test  voltage  so  that  the  core  loss  will  be 
the  same  as  with  the  normal  voltage  and  sine  wave. 
Where  voltage  cannot  be  regulated  by  excitation  of  the 
generator,  it  must  be  done  with  auto  transformer  and  not 
by  rheostat  in  series  with  the  transformer  to  be  tested. 
The  average  of  the  core  losses  of  the  two  transformers  of 
the  same  size  on  one  order  shall  not  exceed  the  value 
specified  on  requisite  sheet  and  the  maximum  core  loss 
must  in  no  case  exceed  this  value  by  more  than  ten  (10) 
per  cent.  iQiQ* 

(b)  Exciting  current. 

The  average  exciting  current  shall  not  exceed  twenty 
(20)  per  cent,  of  full  load  current.  1918. 

(c)  Copper  loss. 

Copper  loss  shall  be  determined  by  watt  meter  in  ac- 
cordance with  A.  I.  E.  E.  standard  for  load  loss.  1919. 

(d)  Full  load  voltage  ratio. 

The  voltage  ratio  of  the  transformer  shall  be  checked 
by  impressing  the  rated  voltage  and  frequency  on  the 
primary  winding  and  reading  all  secondary  voltages  with 
rated  current  flowing  in  each  terminal  at  the  power  factor 
specified  on  requisite  sheet.  The  value  obtained  shall 
not  vary  more  than  two  (2)  per  cent,  plus  or  minus  from 
the  values  given  on  the  voltage  diagram  and  requisite 
sheet.  19 18. 

(e)  Polarity. 

Polarity  of  all  transformers  shall  be  checked  as  fol- 


Connect  the  relatively  positive  terminal  of  one 
winding  to  the  relatively  negative  terminal  of  an- 
other winding,  until  all  the  windings  are  in  series, 
impressing  rated  voltage  across  the  terminals  of  the 
primary  windings.  The  voltmeter  connected  between 
the  two  ends  of  all  the  windings  in  the  series  shall 
read  the  sum  of  all  their  voltages.  i9i7« 
(f)  Regulation. 

I.  With  no  load  the  voltage  of  each  of  the  wind- 
ings shall  not  exceed  the  full  load  value  specified 
on  requisite  sheet  by  more  than  ten  (10)  per  cent. 


2.  When  calculated,  the  regulation  for  either  the 
whole  or  part  of  the  transformer  shall  be  computed 
from  the  measured  resistance  and  the  reactance  drop 


lows : 


1918. 


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5  Transformer 

American  Railroad  Association.  Single-phase, 
_ .      ,  ^ .  .  .  Air-cooled. 
Signal  Division.  Track. 

 ~ — '  Specification. 

1919. 


i2-(f)-2.    Description  of  tests. — Continued. 

of  voltage  using  the  method  as  given  in  the  A.  I.  E.  E. 
standardization  rules.  1918. 
(g)  Temperature  rise. 

1.  The  first  two  (2)  transformers  of  each  size  shall 
be  selected  for  heating  test  of  that  type.  1918. 

2.  When  tested  for  temperature  rise,  transformers 
may  be  overloaded  and  overexcited  to  hasten  the  rise 
of  temperature  to  the  ultimate  value  under  normal 
load  and  final  temperature  in  any  part  maintained  for 
one  (i)  hour  under  constant  full  load  and  normal 
voltage  and  frequency  shall  not  exceed  the  tempera- 
ture of  the  room  more  than  fifty-five  (55)  degrees  C. 
(131°  F.).  The  rise  of  temperature  shall  be  deter- 
mined by  the  increase  of  resistance  of  the  windings 
and  by  thermometer  placed  as  directed  by  repre- 
sentative of  the  Purchaser  and  the  highest  indicated 
temperature  shall  be  taken  to  determine  the  rise. 

1919. 

14.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  (S.  S.  6-a.)  1919. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defective 
material.    The  Contractor  shall  pay  all  freight  charges. 

(S.  S.  6-c.)  1919- 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1919. 

15.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of so  as  to,  in  the  Contractor's  judgment,  affect  its  proper 
functioning  or  reliability,  nor  which  has  been  subject  to 
misuse,  negligence  or  accident.         (S.  S.  lo-a.)  1919- 


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American  Railroad  Association. 
Signal  Division. 


1 6.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919. 

17.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  num- 
ber, name  of  Consignor  and  name  and  address  of  Con- 
signee, shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

(b)  Detailed  list  of  loose  pieces,  containers  and  their 
contents  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.)  1919. 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  9-c.)  1919. 

18.  Requisites  for  single-phase,  air-cooled  track  transformer,  A.R.A. 

specification. 

(a)  Purchaser  to  fill  in  such  items  as  he  desires  to 
specify.  Contractor  to  fill  in  all  other  blanks,  so  that  the 
requisite  sheet  will  be  complete  when  finally  submitted 
with  Contractor's  quotation.  1918. 

(b)  Identification. 

Transformers  covered  by  this  sheet  are  for  

  Railroad  on  Inquiry  ,  Order 

  Requisition  ,  and  are  to  be  of 

f  outdoor  ] 

I  indoor    j  *yP^-  ^919. 

(c)  Quantity  required    1917. 

(d)  Frequency    cycles.  1917. 

Core  loss  watts.  1917. 

Copper  loss  watts.  1917- 

Exciting  current  per  cent.       191 7. 

(e)  Coils  and  windings  shall  be  of  

covered  copper  wire.  1919. 

(f) 


VOLTAGE,  CAPACITY,  POWER  FACTOR  AND  REGULATION  TABLE 


Transformer 
Single-phase, 
Air-cooled. 
Track. 

Specification. 
1919. 


-H— ■ 


VOLTS. 
FULL  AC^fi 

HATMD 

Kv-  ^. 

p. 

C 

s. 

5 

P 

M 

Ts^pical  diagram, 
show  polarity. 


1919. 


.di 


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 H  A 


7  Transformer 

American  Railroad  Association.  Single-phase, 
^4  Air- cooled , 

Signal  Division.  Track. 

Specification. 
1919. 


i8.    Requisites    for    single-phase,    air-cooled    track  transformer, 
A.  R.  A.  specification. — Continued. 

(g)  Terminal  boards  shall  be   1918. 

(h)  Track  circuit  data. 

1.  Length  of  track  circuit  

2.  Size  of  rail   pounds  per  yard. 

3.  Kind  of  bond  wire  

4.  Size  of  bond  wire  A.W.G.  or  CM. 

5.  Kind  of  bonding  pin  

6.  Kind  of  ballast  

7.  Resistance  in  ohms  between  rails  per  thous- 

and feet  of  track  

8.  Resistance  of  rail  in  ohms  per  thousand  feet 

of  track  

9.  Kind  of  traction  power   

10.  Impedance  bond  required  

11.  Electric  traction: 

(a)  Alternating  current   

(b)  Direct  current   

12.  A.C.  electric  traction  frequency  

13.  Number  of  amperes  propulsion  current  per 

rail   

14.  Power  returned: 

(a)  Double  rail   

(b)  Single  rail   

15.  Inductive  bond  impedance    ohms 

at  volts.  1918. 

(i)  Weight. 

1.  Total  net  weight   

2.  Total  shipping  weight   1919- 

(j)  Inspection  or  tests. 

1.  Shall  inspection  or  tests  be  made  at  point  of 
production  under  supervision  of  Purchaser? 

  1917- 

2   days'  notice  required  by  Pur- 
chaser before  apparatus  will  be  ready  for 
inspection  or  test.  1916. 

3.  Shall  inspection  or  tests  be  made  at  destina- 

tion by  Purchaser?    1918. 

4.  Shall  record  of  inspection  and  tests  as  fur- 

nished Contractor  be  accepted?   

1919. 

(x)  Remarks   

  1916. 

(y)  Sign,ed    19 16. 

(z)  Date    1916. 


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.di.-   


^  Transformer. 

American  Railroad  Association.  Single-phase. 
Signal  Division. 

  Oil  Immersed. 


'Self -cooled. 
Specification. 

SPECIFICATION   FOR  SINGLE-PHASE  LINE  TRANS- 
FORMER,  OIL  IMMERSED,  SELF-COOLED. 
1919. 

(Official  Approval  May,  1920.) 

1.  Requisite  sheet. 

(a)  Requisite  sheet,  section  21,  attached  to  this  specifi- 
cation, shall  form  a  part  thereof.         (S.  S.  4-a.)  1919. 

(b)  Where  blanks  have  not  been  filled,  or  where  an 
option  is  permitted  and  no  preference  stated,  the  Con- 
tractor's recommended  practice  shall  be  followed. 

(S.  S.  4-b.)  1919. 

2.  Tender. 

(a)  The  tender  shall  be  for  apparatus  meeting  the  re- 
quirements of  this  specification.  If  the  Contractor 
wishes  to  vary  from  the  specification  a  tender  may  be 
submitted  covering  the  apparatus  he  desires  to  furnish. 
This  tender  shall  be  accompanied  by  full  information 
shov/ing  wherein  the  requirements  of  the  specification 
are  varied  from.  (S.  S.  3-a.)  1919. 

3.  Type. 

(a)  Transformers  may  be  of  the  core  or  shell  type. 

1919. 

(b)  Transformers  shall  be  oil  immersed,  self-cooling, 
and  designed  for  service  as  specified  on  requisite  sheet. 

1919. 

4.  Frequency. 

(a)  Transformer  shall  be  designed  for  frequency  speci- 
fied on  requisite  sheet.  1919. 

5.  Rating. 

(a)  Transformer  shall  have  a  continuous  k.v.a.  rating 
equal  to  the  sum  of  the  ratings  of  all  secondaries,  as 
specified  on  requisite  sheet.  igig. 

6.  Windings. 

(a)  The  voltages,  k.v.a.  capacities,  power  factors  and 
other  data  regarding  the  load  on  the  separate  windings 
shall  be  as  specified  on  requisite  sheet.  1919. 

(b)  Voltages  specified  on  requisite  sheet  shall  be  based 
on  no  load  operation  and  are  subject  to  the  effects  of 
regulation  at  various  loads  and  power  factors.  1919. 

7.  Case. 

(a)  Transformer  case  shall  be  made  of  material  as 
specified  on  requisite  sheet  and  provided  with  cast  iron 
cover.  Eye-bolts  or  lugs  shall  be  provided  for  handling 
the  transformer  and  lugs  for  supporting  it.   Case  shall  be 


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2  Transformer. 
American  Railroad  Association.  iSf 

Signal  Division.  OU  Immersed. 

 ^  Self-cooled. 

Specification. 

7-a.  Case. — Continued.  1919. 
free  from  leaks  and  shall  be  impervious  to  oil.  Covers 
shall  be  provided  with  felt  or  other  suitable  gaskets. 
Plugs  shall  be  provided  at  bottom  of  case  for  removing 
fluids.  When  specified  on  requisite  sheet,  the  case  shall 
be  provided  with  a  suitable  terminal  for  grounding. 

1919. 

8.  Voltage  diagram. 

(a)  A  diagram  showing  the  total  no  load  voltage,  tap 
voltages  and  k.v.a.  capacity  of  each  winding  and  the  rela- 
tive or  instantaneous  polarities  o£  the  leads  shall  be  fur- 
nished with  each  transformer.  Diagram  shall  be  securely 
attached  to  each  transformer.  1919- 

9.  Material  and  workmanship. 

(a)  Material  and  workmanship  shall  be  first-class  in 
every  respect.  (S.  S.  5-a.)    191 1. 

10.  Hangers. 

(a)  Hanger  irons  and  bolts,  of  sufficient  strength  to 
support  transformer  in  an  upright  position  on  pole,  shall 
be  furnished  unless  otherwise  specified  on  requisite  sheet. 

1919. 

11.  Leads  and  terminal  boards. 

(a)  Leads  out  of  case  shall  be  of  insulated  flexible  wire 
of  a  cross  section  not  less  than  number  twelve  (12)  A. 
W.  G.  1916. 

(b)  Leads  shall  be  brought  out  of  the  case  through 
suitable  bushings  wl^ich  shall  be  sealed  into  the  case 
with  an  oil-proof  compound,  containing  not  more  than 
one  (i)  per  cent,  of  sulphur,  and  which  will  not  soften 
sufficiently  to  flow  at  any  temperature  less  than  one 
hundred  (100)  degrees  C.  (212°  F.).  The  leads  shall  be 
brought  through  the  bushings  in  such  a  manner  that 
syphoning  of  oil  by  capillary  attraction  is  prevented. 

1919. 

(c)  Tap  leads  from  high  voltage  windings  shall  be 
brought  to  a  terminal  board  or  boards  mounted  inside  of 
case  in  a  readily  accessible  position,  but  submerged  in  oil. 

^  1916. 

(d)  Where  winding  conductor  is  of  smaller  cross  sec- 
tion than  number  sixteen  (16)  A.  W.  G.,  a  flexible  con- 
ductor of  not  less  than  number  sixteen  (16)  A.  W.  G.  shall 
be  used  as  a  lead  from  the  winding  to  the  terminal  board. 
Where  number  sixteen  (16)  A.  W.  G.  conductor  is  used 

;  as  a  lead  it  shall  be  enclosed  in  a  fibre  tube  or  otherwise 

suitably  supported.  191 7. 


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3  Transformer. 
American  Railroad  Association.  Single-phase. 
Signal  Division. 

 _Oil  Immersed. 

Self-cooled. 

Leads  and  terminal  boards. — Continued.  Specific^ion. 

(e)  The  instantaneous  external  polarities  of  windings 
shall  be  indicated  by  plainly  marking  the  relative  positive 
and  negative  leads  from  each  winding.  They  shall  be 
determined  as  follows: 

1.  The  positive  terminal  of  the  primary  winding 
shall  be  arbitrarily  indicated. 

2.  The  positive  terminal  of  a  secondairy  winding 
will  then  be  that  terminal  from  which  current  is  flow- 
ing out  to  the  load  at  the  instant  when  current  is 
flowing  into  the  positive  terminal  of  the  primary 
winding.  19 17. 

(f)  All  transformers  of  a  given  type  and  manufacture 
shall  be  arranged  so  that  the  instantaneous  polarities  of 
corresponding  leads  are  as  shown  on  requisite  sheet. 

1919. 

Core. 

(a)  The  core  shall  be  of  non-aging  laminated  sheet  steel 
so  assembled  that  no  buzzing  is  perceptible.  1919. 

(b)  The  steel  shall  be  considered  non-aging  provided 
the  aging  coefficient  does  not  exceed  1.02  after  subjecting 
the  steel  to  a  continuous  temperature  of  one  hundred  (100) 
degrees  C.  (212°  F.)  for  a  period  of  thirty  (30)  days. 

1919. 


13.  Oil. 


(a)  Oil  shall  be  as  specified  on  requisite  sheet.  1919. 

(b)  Sufficient  oil  shall  be  furnished  to  completely  im- 
merse the  core,  windings,  high  voltage  terminal  boards 
and  terminals,  and  to  adequately  dissipate  the  heat  gener- 
ated by  the  losses.  igi?. 


14.  Insulation. 

(a)  Coils  and  windings  shall  be  of  cotton  or  silk- 
covered  wire  impregnated;  of  enameled  wire,  or  as  shown 
on  requisite  sheet.  Enameling  or  impregnation  shall  be 
in  accordance  with  R.  S.  A.  specifications. 

(G.  E.  R.  32-a.)  1919. 

(b)  The  high  voltage  windings  shall  be  insulated  from 
the  low  voltage  windings  by  a  barrier  of  ample  dielectric 
strength.  Each  turn  shall  be  thoroughly  insulated  and 
the  voltage  between  adjacent  turns  kept  as  low  as  is  con- 
sistent with  good  design.  Windings  shall  be  carefully 
taped  and  leads  shall  be  brought  out  in  a  thoroughly 
workmanlike  manner.  Unless  enameled  wire  is  used, 
windings  shall  be  dried  by  the  vacuum  process  and  im- 
pregnated with  an  insulating  compound.    The  windings 


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ajinibniwr  ^dl    .bnaoqmoD  igithBtnani  '  '^'iaiq 


4  Transformer. 
American  Railroad  Association.  Single-phase. 

Signal  Division.   Oil  ^Immersed. 

 Self -cooled. 

Specification. 


14-b.    /23Su/at/o/3.— Continued.  1919 
shall  be  so  disposed  as  to  permit  the  free  circulation  of 
oil  and  the  maintenance  of  a  nearly  uniform  temperature 
throughout.  1919. 

(c)  Material  used  as  insulation  shall  be  such  as  will 
not  be  injuriously  affected  by  atmospheric  conditions.  It 
shall  be  moisture-proof  and  not  soluble  in,  nor  acted  up- 
on by,  the  transformer  oil  at  operating  temperature. 

1917. 

15.  Tests. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919. 

(d)  Tests  enumerated  beiow  shall  be  made  on  all 
transformers : 

1.  Exciting  current. 

2.  No  load  voltage  ratio. 

3.  Polarity. 

4.  Dielectric  strength. 

5.  Core  loss. 

6.  Copper  loss.  1917. 

(e)  The  following  test  shall  be  made  on  the  first  two 
(2)  transformers  of  new  characteristics: 

1.  Regulation. 

2.  Temperature  rise.  1919. 

16.  Description  of  tests. 

(a)  Core  loss. 

I.  Core  loss  and  exciting  current  shall  be  taken  at 
any  convenient  ambient  temperature,  preferably  not 
less  than  fifteen  (15)  degrees  C.  (59°  F.).  Core  loss 
shall  be  measured  with  a  watt  meter  at  normal  fre- 
quency and  voltage,  using  power  from  generator 
giving  a  sine  wave  when  such,  is  available.  When  a 
pure  sine  wave  is  not  available,  it  shall  be  permissible 
to  use  any  wave  form  which  comes  within  the  A.  I. 
E.  E.  definition  of  a  sine  wave,  adjusting  the  test 
voltage  so  that  the  core  loss  will  be  the  same  as 
with  normal  voltage  and  sine  wave.  Where  voltage 
cannot  be  regulated  by  excitation  of  the  generator,  it 
must  be  done  with  auto-transformers  and  not  by  rheo- 
stats in  series  with  the  transformers  to  be  tested. 


3iiit£iaqm9J  miolin:  ^^^^  ^'^^ 

jjrn  ad  IlBita 


^noiJouboiq  lo  iixi- 

IlG  no  ^bsm        lisda  woldd  bdifiiamfina  aiasT  (b) 


;2oI  laqqoO  .5 


owi  J8ift  ariJ  no  sbsm  ad  Ilfiria  i33*  sriiwolloi  ariT  (9) 


310D  (b) 

*s  ftdiB*  !»d  ilBiis  Jxi9-nw3  gni^bx^  bns  zsol  mo3  .1 
ton  ^cicfBialaiq  .^iislBi^qm^i  in^idoiB  •ruainavnoD  '^i 

iBfmon  ijs  la^arn  new  b  riJiw  bsitiafi^m  ad  II.  - 
•  -■  ->nsg  moil  lawcq  §ni8U  ^as^^o^  bns  v^n^  , 
iW    .sldsIiBVB  8i  jriioi/2  aadw  avsw  ^nis 
vr  i-;sq  ad  IlBriE     .ardBUBVfi  ^on  ai  svbw 
L  ,         r/icbiw  asmoD  ilDidw  miol  9VBW  yriB   aair  ol 
iniiaulbB  ,9VBw  ania  -  '       -^nnaab  .3  .3 
aB  ^itw^  ^di  ^d  Iliw  aaof  aio.  t  oa  ^s^iiov 

9SB1IOV  9i3riW    .3VBW  9Xiia  bHB  .  ^^i.  i lB«iion  liJiw 
.oiB-iesnag  aril  lo  nobBHoxa       baiBlusai  ad  lonnsD 
^d  ion  bHB  8-iaimolafisil-oJi/B  dJiw  anob  ad  ^ 


>i>hDa  ni 


5 

American  Railroad  Association. 
Signal  Division. 


Transformer. 
Single-phase, 
liine, 


Oil  Immersed, 
Self -cooled. 
Specification. 


1 6.    Description  of  tests. — Continued. 


1919. 


The  average  of  the  core  losses  of  the  full  number  of 
transformers  of  the  same  size  on  one  order  shall  not 
exceed  the  value  specified  on  requisite  sheet  and  the 
maximum  core  loss  must  in  no  case  exceed  this  value 


(b)  Exciting  current. 

I.  The  average  exciting  current  as  observed  during 
the  test  for  core  loss  shall  not  exceed  the  value  speci- 
fied on  requisite  sheet.  For  transformers  from  one 
(i)  to  five  (5)  k.v.a.  capacity,  the  exciting  current 
shall  not  exceed  fifteen  (15)  per  cent,  of  the  full  load 
current.  For  transformers  of  over  five  (5)  k.v.a. 
capacity,  the  exciting  current  shall  not  exceed  ten 
(10)  per  cent,  of  the  full  load  current.  With  an  ap- 
plied voltage  of  ten  (10)  per  cent,  above  normal,  the 
exciting  current  shall  in  no  case  be  more  than  double 
the  percentage  given  for  normal  voltage.  1919. 

(c)  Copper  loss. 

I.  Copper  loss  shall  be  determined  by  watt  meter 
in  accordance  with  A.  I.  E.  E.  standard  for  load  loss. 


(d)  No  load  voltage  ratio. 
I.  The  voltage  ratio  of  the  transformer  shall  be 

checked  by  impressing  rated  voltage  and  frequency 
on  the  primary  winding  and  reading  all  secondary 
open  circuit  or  no  load  voltages  with  a  voltmeter. 
The  value  obtained  shall  not  vary  more  than  two  (2) 
per  cent,  plus  or  minus  from  the  values  given  on  the 
voltage  diagram  and  requisite  sheet.  191 7. 

(e)  Polarity. 

I.  Polarity  of  all  transformers  shall  be  checked  as 
follows:  Connect  the  relatively  positive  terminal  of 
one  winding  to  the  relatively  negative  terminal  of 
another  winding  until  all  the  windings  are  in  series. 
Impress  rated  voltage  across  the  terminals  of  the 
primary  winding.  A  voltmeter  connected  between 
the  two  ends  of  all  the  windings  in  series  shall  read 
the  sum  of  all  their  voltages.  191 7. 

(f)  Insulation. 

I.  The  windings  shall  withstand  the  following  test 
voltages  for  one  (i)  minute.  The  transformer  being 
filled  with  oil  at  the  time  the  tests  are  made: 


by  more  than  ten  (10)  per  cent. 


1919. 


1919. 


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jon  ifjBrfe  labio  ^no  no  axia  3iits«  aiit  aidmioisnBr 
adi  bnB  ^^^rfa  aJiaiupai  no  b^aiaaqa  salsv  arfl  baooxe 
»alBV  tidl  b993X9  aaeo  on  ni  izvm  aaol  dioo  mumixsm 
'.n?^? -'-'^n  (oi)  nai  rifiriJ  9iom 

r/nob  bdVi3»do  2fi  inanua  sni^bxd  asBiavB  sriT  .i 
ii33qa  9wf6Y  arf*  basixa  Ion  Ilsria  aaol  dioa  lol  iaaJ  sri) 
ano  moii  ai9m-.o!ani;iJ  lo'^  Ja^ria  dikiopat  no  be»a 
in-iTino  sniiiox^  ^di  .xlbfiqsp  .b.v.iI  (e)  svH  oJ  (i) 
bBoI  llul  ^di  lo  .in^'^  -i^q  r.^^^^h  baaoxa  ton  Ilsii^ 
.s,v.j[  (a)  -Jsvo  lo  BisnnoianBii  lo'i  .In^ny^ 

n^*  b993Xd  Jon  IlBrfa  Jnaniio  §n.iiiox9  sdi  .fihBqBu 
^nB  a&  dim  Jnanno  bBoI  ilul  ariJ  lo  .ina'^  (oi) 
Aril  ffimion  svodB  ,lne>.o  laq  (oi)  n^t  lo  a^s^io^  bailq 
Much  HBrii  »torn  shbd  on  ni  Ilfirfa  Jnaiiua  gflitiaxa 
,  ,  5T         .^sBlIov  iBjmon  lol  navis  asfilnMiaq  ariJ 

.gaol  i9qqo3  (o) 
i33j>ia  ^iEW  ^cd  bsnimididb  ad  iMa  aaoi  laqqoO  .i 

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•  £d8  lamioianBii  arit  lo  oiiBi  ^^Bilov  sdT  .i 
xonaupait  bnB  a^Bilov  batfii  sniaaaiqmi  ^cd  bajioariD 
viBbnoDs»8  Us  snibBai  bns  inibniw  ^iBmnq  arit  no 
■t^lanrtrov  B  rfiiw  aasBilov  bsol  on  lo  ihsoiio  n^qo 
(s)  owJ  HBdi  aiom  ijibv  ion  IfBrfa  h^niBldo  anisv  ariX 
9di  no  navis  adulsv  aril  moil  aunim  lo  aniq  .in^D  laq 
.^iQi  la^ria  ^liampai  bns  mBiseib 

.yrfi^&io^  (a) 

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lo  iBnimis*  ^vhlaoq  ^^bviiBl^i  sdJ  toarmoD  :awolAol 
lo  iBaimi^i  3vBBS5n  ^bvBBb-r  aril  ol  gnibniw  ^no 
.aahaa  ni  sib  a^nibniw  aril  IIb  iimn  ^nibniw  lariJons 
Qdi  lo  afBnirmal  ari?  aaoiDB  assifov  balBi  aaaTqml 
naawJsd  balaannoo  lalamlfov  A  .gnibniw  ^iBmnq 
bB.i  IlBrie  aahf^a  ni  agnibniw  ari*  Hb  lo  abna  owl  aril 

,  J,..  .gdSBlIov  -  lo  mua  arit 

.aoilBlwanI  (1) 
-twollol  aril  bnfilariliw  IlBria  agnibniw  arfT  .1 
sniad  lamiolansit  ariT    .^lunim  (i)  ano  lol  ^^Sf 


6  Transformer. 
American  Railroad  Association.  Single-phase. 

 g^g^a/  Division,   _Sn^Immersed. 

Self -cooled. 

_        .    .        ,  «      .       ,  Specification. 

16-1-1.    Description  of  tests. — Continued.  z  1919. 

Test  voltage  to  all  other 
Rated  voltage  windings  and  from 

Winding  of  winding  winding  to  core 

High  or  low  voltage       0-549  Twice  rated  voltage 

plus  1000  V. 

Low  voltage  550-5000  Twice  rated  voltage 

plus  1000  V. 

High  voltage  550-5000  10,000  volts. 

High  or  low  voltage  5001  and  above  Twice  rated  voltage 

plus  1000  V. 

1917. 

2.  In  case  of  a  one-to-one  transformer,  one  (i) 
winding  shall  be  considered  as  high  voltage  and  shall 
be  insulated  in  accordance  with  the  test  for  a  high 
voltage  winding  of  the  rated  voltage  specified  there- 
for, igiy, 

3.  The  windings  shall  withstand  for  one  (i)  minute 
an  impressed  voltage  at  a  suitable  frequency  of  two 
(2)  times  the  rated  no  load  voltage.  1917. 

(g)  Regulation. 

1.  With  the  maximum  rated  load  at  the  power 
factor  specified  on  all  of  the  circuits,  the  regulation 
of  each  of  the  windings  shall  not  exceed  the  value 
specified  on  requisite  sheet.  1919. 

2.  When  calculated,  the  regulation  for  either  the 
whole  or  part  of  the  transformer  shall  be  computed 
from  the  measured  resistance  and  the  reactance  drop 
of  voltage  using  the  method  as  given  in  the  A.  I. 
E.  E.  Standardization  rules.  1917. 

(h)  Temperature  rise. 

1.  The  two  (2)  transformers  of  each  size  whose 
combined  core  and  copper  losses  come  nearest  to 
values  specified  on  requisite  sheet  shall  be  selected 
for  heating  test  of  that  type  and  size.  1919. 

2.  When  tested  for  temperature  rise,  transformers 
may  be  overloaded  and  over-excited  to  hasten  the 
rise  of  temperature  to  the  ultimate  value  under  nor- 
mal load  and  the  final  temperature  in  any  part  main- 
tained for  one  (i)  hour  under  constant  full  load  and 
normal  voltage  and  frequency  shall  not  exceed  the 
temperature  of  the  room  by  more  than  fifty-five  (55) 
degrees  C.  (131°  F.).  The  rise  of  temperature  shall 
be  determined  by  the  increase  of  resistance  of  the 
windings  and  by  the  thermometer  in  the  oil,  placed  as 


mi  rio 


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7  OOOI  aiJiq 

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italaaaH  (a) 

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aril  baaoxa  Ion  lUria  ^onaupa,!  bnB  aSBlto.  '«rn.on 
(li)  avH-iclia  HBril  aiom      moot  a*  io 

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26  baoBlq  ,Iio  arfJ  m  ,ala<nomiaril  aril  'jd  briB  8-  • 


7  Transformer. 
American  Railroad  Association.  Single-phase. 

Signal  Division.  ^^^^ 

 Oil  Immersed. 

Self-cooled. 


i6-h-2.    Description  of  fests.-^Continued.  Specification, 
directed  by  the  representative  of  the  Purchaser,  and 
the  highest  indicated  temperature  shall  be  taken  to 
determine  the  rise.  1919. 

17.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages  of 
manufacture.  (S.  S.  6-a.)  igig. 

(b)  Purchaser  may  inspect  the  completed  product  to 
determine  that  the  requirements  of  this  specification  have 
been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defective 
material.    The  Contractor  shall  pay  all  freight  charges. 

(S.  S.  6-c.)  1919. 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1919. 

18.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of, so  as  to,  in  the  Contractor's  judgment,  affect  its 
proper  functioning  or  reliability,  nor  which  has  been  sub- 
ject to  misuse,  negligence  or  accident. 

(S.  S.  io~a.)  1919. 

19.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  1919. 

20.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor  and  name  and  address  of  Consignee 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

(b)  Detail  list  of  loose  pieces,  containers  and  their 
contents,  shall  be  furnished  for  each  shipment.  Where 
car-load  shipments  are  made,  routing  and  car  identifica- 
tion shall  be  shown.  (S.  S.  9-b.)  1919. 


■  -.jI^*  .iOlSuV^«>c.:..'.  V-..-:- ...-i-./i- 


.,    t->oa'--'*»i  ^^f^rr  i^afirfoiu*!  (a) 
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oi  *^m>o.c  .      .Wdiu^  (d) 

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.  ,  ,      .  ^    -         .-oai^^sqs  3xrii  io  sJnamaiiypai  ^rii  team 
ypsi  noqu  ,ioJ0Eilno3  arft  bns  .b^lD^t 
^v^o^j.  V    ^DBm  3d  oi  ai  noitisoqaib  JBfiw  laaBrfaiiJ*! 

uaa-ifiK-.  Hb  ^cBq  ilfirfa  iolaB"ilnoO  driT  .iBhsJBHi 

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Di;v'    <  rf-p  .8  .2)  .nworia  ad  liBila  noii 


8 

American  Railroad  Association. 
Signal  Division. 


20.  Marking. — Continued. 

(c)  Where  car-load  shipments  are  made,  name  and  ad- 
dress of  Consignee  may  be  omitted.    (S.  S.  g-c.)  1919. 

21.  Requisites  for  single-phase  line  transformer,  oil  immersed,  self- 

cooled,  A.  R.  A.  speci£cation. 

(a)  Purchaser  to  fill  in  such  items  as  he  desires  to 
specify.  Contractor  to  fill  in  all  other  blanks,  so  that  the 
requisite  sheet  will  be  complete  when  finally  submitted 
with  Contractor's  quotation.  1919. 

(b)  Identification:     Transformers    covered    by  this 

sheet  are  for   

  Railroad  on  Inquiry   Order 

 Requisition  and  are  to  be  of 

(  outdoor  } 

I  manhole  |  ^^^^  "^^^        operation  of  

  at   1919. 

(c)  Quantity  required   1917. 

(d)  Frequency   cycles. 

Core  loss  watts. 

Copper  loss  watts. 

Exciting  current   per  cent.  1919. 

(e) 


Transformer. 
Single-phase. 
I/ine, 

Oil  Immersed. 
Self-cooled. 
Specification. 
1919. 


mmf 


•H  


VOLTS 

K.V.  A. 

RATED 
Vt.V.  A. 

P.  F. 

Pei^  CENT  weCrOLATION 

lOO^o  P.F: 

e,o%  p.p. 

c 

p 

e 

f= 

H 

I9I9. 


Typical  diagram, 
show  polarity. 

(f)  Coils  and  windings  shall  be  of   

covered  copper  wire. 

I'  cast  iron. 

(g)  Transformer  case  shall  b^e  |^  sheet  steel. 


1919. 


1919. 


(h)  Transformers  to  be  in  accordance  with  A.  R.  A. 
specification.  1919- 

(i)  Weight. 

1.  Total  net  weight  including  oil   

2.  Total  shipping  weight  

1919. 


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9  Transformer. 
American  Railroad  Association.  Single-phase. 
Signal  Division.  ®; 


Oil  Immersed. 
Seif-cooled. 
Specification. 


Requisites  for  single-phase  line  transformer,  oil  immersed,  self-  1919 
cooled,  A.  R.  A.  speci£cation. — ^Continued. 

(j)  Shall  hanger  irons  be  furnished?   

1919. 

(k)  Shall  case  be  provided  with  grounding  terminals? 

  1919- 

(1)  Inspection  and  tests. 

1.  Shall  inspections  or  tests  be  made  at  point  o£ 
production  under  supervision  of  Purchaser?  

1917. 

2.  days'  notice  required  by  Purchaser 

before  apparatus  will  be  ready  for  inspection  or  test. 

1916. 

3.  Shall  inspection  or  test  be  made  at  destination  by 
Purchaser?    19 18. 

4.  Shall  record  of  inspection  and  tests  as  furnished 
by  Contractor  be  accepted?   1919- 

(x)  Remarks   


(y)  Signed 
(z)  Date  . 


1916. 
1916. 
1916. 


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  a;{iAmaH  (x) 


.di(5J. 


.  .  a)£a  (75) 


American  Railroad  Association, 
Signal  Division. 


Volt- 
Ammeters 
Portable  D.C. 
Specification . 
1919. 


I. 


SPECIFICATION  FOR  PORTABLE  DIRECT  CURRENT 
VOLT-AMMETERS. 
1919. 

(Official  Approval  May,  1920.) 

Purpose. 

(a)  The  purpose  of  this  specification  is  to  provide  for 
portable  d.c.  volt-ammeters  for  railway  signal  testing. 

(S.  S.  i-a.)  1919. 


2.  General. 


(a)  Instruments  shall  be  made  in  three  combinations : 

1.  Combination  No.  i  for  use  when  a  relatively 
high!  degree  of  accuracy  is  desired  and  when  current 
measurements  are  to  be  made  in  connection  with  the 
testing  of  high  resistance  coils  for  "pick-up"  and 
"drop-away"  of  the  armature.  1919- 

2.  Combination  No.  2  for  use  when  a  relatively 
high  degree  of  accuracy  is  desired,  but  an  instrmnent 
of  greater  flexibility  is  required  than  is  possessed  by 
combination  No.  i.  1919. 

3.  Combination  No.  3  for  use  when  an  instrument 
of  less  flexibility  than  those  of  combinations  Nos.  i 
and  2  will  be  adequate,  or  when  a  less  expensive  in- 
strument is  desired.  1919. 


Type. 


4.  Ranges. 


(a)  Instrument  shall  be  of  the  d'Arsonval  type. 


1919. 


(a)  Instruments  shall  have  all  ranges  self-contained. 

1919. 

(b)  Ranges  for  the  different  combinations  shall  be  as 
follows: 


1.  Combination  No. 
o-  .030  amperes 
o-    .300  " 

o-  3.00  " 
0-30.0  " 

2.  Combination  No. 
o-  .150  amperes 
o-  1.50 

015.0 

3.  Combination  No. 
0-  .300  amperes 
o-  6.00 


3.0 
30. 


3-00 
15.0 
150. 

3.0 
30. 


volts. 


volts. 


volts. 


I9I9. 


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2  Volt- 

American  Railroad  Association.  Ammeters 

  1919. 


5.  Scales. 

(a)  Scales  for  the  different  combinations  shall  be  in  ac- 
cordance with  R.S.A.  1378  as  follows: 

1.  Scale  of  instruments  with  minimum  scale  length 
of  five  (5)  inches  shall  consist  of  one  hundred  and 
fifty  (150)  divisions,  of  fifteen  (15)  blocks  of  ten  (10) 
divisions  each.  1919. 

2.  The  scale  of  instruments  with  minimum  scale 
length  of  two  and  one-half  (2%)  inches  shall  consist 
of  sixty  (60)  divisions  of  six  (6)  blocks  of  ten  (10) 
divisions  each.  1919. 

(b)  The  different  combinations  shall  have  the  follow- 
ing minimum  scale  lengths : 

1.  Combination  No.  i,  five  (5)  inches.  1919. 

2.  Combination  No.  2,  either  five  (5)  or  two  and 
one-half  (25^)  inches.  1919. 

3.  Combination  No.  3,  two  and  one-half  (2^) 
inches.  1919. 

(c)  Scales  shall  be  hand  calibrated  and  so  constructed 
as  not  to  be  affected  by  moisture  or  changes  in  tempera- 
ture. 1919- 

6.  Binding  posts. 

(a)  Connection  to  the  instrument  shall  be  made  on 
binding  posts.  1919- 

(b)  Binding  posts  shall  be  locked  in  position  so  they 
will  not  turn.  They  shall  be  provided  with  non-removable 
nuts.  1919. 

(c)  The  polarity  of  the  common  terminal  binding  post 
shall  be  positive  and  so  marked.  1919- 

7.  Zero  adjuster. 

(a)  External  zero  correctors  shall  be  provided  on  all 
instruments.  iQiQ* 

8.  Pointer. 

(a)  Pointer  shall  have  knife  edge  tip.  iQiQ* 

(b)  The  motion  of  the  pointer  shall  respond  quickly  to 
changes  in  current  or  voltage,  and  shall  be  practically 
aperiodic.  1919- 

9.  Mirror  slot. 

(a)  Scale  for  instruments  having  minimum  scale  length 
of  five  (5)  inches  shall,'  be  provided  with  mirror  slot  di- 
rectly beneath  the  knife  edge  tip  of  the  pointer.  1919- 

10.  Movable  coil. 

(a)  The  movable  coil  shall  be  provided  with  hardened 
and  polished  steel  pivots,  which  shall  operate  in  highly 
polished  sapphire  jewels.  I9i9' 


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3  Volt- 

American  Railroad  Association. 

„ .      ,  ^ .  .  .  Portable  D.O. 

Signal  Division.  Specification. 
 — ■   1919. 


11.  Magnetic  shielding. 

(a)  Instrument  shall  be  shielded  from  external  mag- 
netic and  electrostatic  influences.  1919. 

12.  Push  button. 

(a)  When  push  button  is  provided  it  shall  be  so  ar- 
ranged to  lock  in  the  operating  position  when  instrument 
is  used  as  a  voltmeter.  iQiQ* 

13.  Heating. 

(a)  Instruments  shall  be  capable  of  being  left  in  the 
circuit  indefinitely  at  full  load  without  over-heating  or 
showing  an  appreciable  error.  1919- 

14.  Case. 

(a)  Instruments  shall  be  enclosed  in  a  moisture  and 
dust-proof  case  which  shall  have  a  neat  and  durable  finish. 

1919. 

15.  Sealing. 

(a)  Instruments  shall  be  sealed  in  such  a  manner  as  to 
prevent  any  changes  or  adjustments  except  by  means  of 
the  zero  adjuster,  without  breaking  the  seal.  1919. 

16.  Sensitivity. 

(a)  Voltmeter  ranges  of  comibination  No.  i  instru- 
ments shall  have  a  sensitivity  of  not  less  than  one  hun- 
dred (100)  ohms  per  volt.  1919- 

(b)  Voltmeter  ranges  of  combination  No.  2  instru- 
ments shall  have  a  sensitivity  of  not  less  than: 

1.  With  a  five  (5)  inch  scale,  one  hundred  (100) 
ohms  per  volt.  I9i9« 

2.  With  a  two  and  one-half  (25^^)  inch  scale  fifty 
(50)  ohms  per  volt.  I9i9« 

(c)  Voltmeter  ranges  of  combination  No.  3  instru- 
ments shall  have  a  sensitivity  of  not  less  than  fifty  (50) 
ohms  per  volt.  ^9^9- 

17.  Error  due  to  temperature. 

(a)  All  voltmeter  scales  shall  be  practically  compen- 
sated for  errors  due  to  changes  in  temperature.  1919. 

(b)  Ammeter  scales  for  instruments  with  minimum 
scale  of  five  (5)  inches  shall  not  have  an  error  due  to 
temperature  changes  in  excess  of  one-half  (%)  of  one  (i) 
per  cent,  for  a  change  of  nine  (9)  degrees  F.  below  or 
above  the  certified  temperature.  (For  example:  from 
sixty-one  (61)  degrees  F.  (16°  C.)  to  seventy-nine  (79) 
degrees  F.  (26°  C).  1919. 

(c)  Ammeter  scale  for  instruments  with  minimum  scale 
length  of  two  and  one-half  (2%)  inches  shall  not  have  an 
error  due  to  temperature  changes  in  excess  of  one  (i) 
per  cent,  for  a  change  of  eight  (8)  degrees  F.  below  or 
above  the  certified  temperature.  1919- 


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10  wol0d      awisab  (8)  ^rigra       asxiBriD  £  loi  .tn«  laq 


4  Volt- 
American  Railroad  Association.  P^wTd.C. 

Signal  Division.  Specification.* 
 •  —   1919. 


1 8.  Accuracy. 

(a)  Combination  No.  i  instruments  shall  be  accurate  to 
within  one-half  (Yz)  of  one  (i)  per  cent,  of  full  scale 
value  at  any  part  of  the  scale.  iQiQ- 

(b)  Combination  No.  2  instrument  shall  be  accurate  to : 

1.  When  equipped  with  five  (5)  inch  scale,  one-half 
(14)  of  one  (i)  per  cent,  of  full  scale  value  at  any 
part  of  the  scale.  ^9^9- 

2.  When  equipped  with  two  and  one-half  (2%) 
inch  scale,  one  (i)  per  cent,  of  full  scale  value  at  any 
part  of  the  scale.  i9^9' 

(c)  Combination  No.  3  instrument  shall  be  accurate  to 
within  one  (i)  per  cent,  of  full  scale  value  at  any  part  of 
the  scale.  ^9^9- 

19.  Data  for  correction. 

(a)  Instruments  having  minimum  scale  length  of  five 
(5)  inches  shall  have  certificate  securely  attached  on 
which  is  recorded  all  data  essential  to  their  accurate  use. 

1919. 

(b)  Instrimients  having  minimum  scale  length  of  two 
and  one-half  (21^)  inches  shall  have  the  resistance  of 
voltmeter  ranges  plainly  and  permanently  marked  on  the 
face  of  the  instrument.  iQ^Q* 

20.  Marking. 

(a)  Purchaser's  order,  requisition  and  package  number, 
name  of  Consignor,  and  name  and  address  of  Consignee, 
shall  be  plainly  marked  on  outside  of  package. 

(S.  S.  9-a.)  1919. 

21.  Packing. 

(a)  Material  shall  be  so  prepared  as  to  permit  con- 
venient handling  and  to  protect  against  loss  or  damage 
during  shipment.  (S.  S.  8-a.)  igiQ* 

22.  Tests. 

(a)  Tests  may  be  made  at  point  of  production,  or  on 
samples  submitted,  and  may  also  be  made  at  destination. 

(S.  S.  7-a.)  1919. 

(b)  Contractor  shall  give  the  Purchaser  sufficient 
notice  of  time  when  material  will  be  ready  for  testing. 

(S.  S.  7-b.)  1919. 

(c)  Contractor  shall  provide,  at  point  of  production, 
apparatus  and  labor  for  making  the  required  tests  under 
supervision  of  the  Purchaser.  (S.  S.  7-c.)  1919- 

23.  Inspection. 

(a)  Purchaser  may  inspect  the  material  at  all  stages 
of  manufacture.  (S.  S.  6-a.)  I9i9« 


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5  Volt- 

American  Railroad  Association,  d^^t^^^^^^  ^ 

_.  Portable  D.C. 

Signal  Division.    Specification. 

 —  —   1919. 

23.  Inspection. — Continued. 

(b)  Purchaser  may  inspect  the  completed  product  to  * 
determine  that  the  requirements  of  this  specification  have 

been  met.  (S.  S.  6-b.)  1919. 

(c)  If  the  material  has  not  been  accepted  at  point  of 
production,  and  if,  upon  arrival  at  destination,  it  does  not 
meet  the  requirements  of  this  specification,  it  may  be  re- 
jected, and  the  Contractor,  upon  request,  shall  advise  the 
Purchaser  what  disposition  is  to  be  made  of  the  defective 
material.   The  Contractor  shall  pay  all  freight  charges. 

(S.  S.  6-c.)  1919- 

(d)  If  Purchaser  is  to  make  inspection  at  point  of  pro- 
duction, it  shall  be  so  stated.  (S.  S.  6-d.)  1917. 

24.  Warranty. 

(a)  Contractor  shall  warrant  the  material  covered  by 
this  specification  to  be  free  from  defects  in  material  and 
workmanship  under  ordinary  use  and  service,  his  obliga- 
tion under  this  warranty  being  limited  to  making,  at  point 
of  production,  any  part  or  parts  to  replace  those  which 
shall  be  found  defective  within  one  (i)  year  after  ship- 
ment to  the  Purchaser.  This  warranty  shall  not  apply  to 
any  apparatus  which  shall  have  been  repaired  or  altered 
in  any  way  by  anyone  other  than  the  Manufacturer  there- 
of so  as  to,  in  the  Contractor's  judgment,  affect  its  proper 
functioning  or  reliability  nor  which  has  been  subject  to 
misuse,  negligence  or  accident.         (S.  S.  lo-a.)  1919- 

25.  Material  and  workmanship. 

(a)  Material  and  workmanship  shall  be  first-class  in 
every  respect.  (S.  S.  5-a.)  1911. 

26.  Requisites  for  direct  current  portable  volt-ammeters,  A.  R.  A. 

Specification. 

(a)  Purchaser  to  fill  in  such  items  as  he  desires  to 
specify.  Manufacturer  to  fill  in  all  other  blanks  so  that 
the  requisite  sheet  will  be  complete  when  finally  sub- 
mitted with  Manufacturer's  quotation.  1919- 

(b)  Instnmients  shall  be  in  accordance  with  A.R.A. 
Specification.  1919- 

(c)  Identification.  Volt-ammeters  covered  by  this  sheet 

are  for   Railroad  on  inquiry  

order    requisition    I9i9- 

(d)  Number  required   I9i9» 

(e)  Design. 

1.  Combination  number  

2.  Minimum  scale  length   inches. 

3.  Shall  push  button  attachment   for  voltmeter 
scale  be  provided?    1919- 


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6  Volt- 

American  Railroad  Association.  d"^?^®''^  « 

«.      ,        .  .  Portable  D.O. 

Signal  Division.  Specification. 

  1919. 


26.    Requisites  for  direct  current  portable  volt-ammeters. — Con. 

(f)  Carrying  case. 

I.  Shall  leather  carrying  case  be  provided?   

  1919. 

(g)  Inspection  or  tests. 

1.  Shall  inspection  or  tests  be  made  at  point  of 
production  under  supervision  of  Purchaser?  

1919. 

2   days'  notice  required  by  Pur- 
chaser before  apparatus  will  be  ready  for  inspection 
or  tests.  1919- 

3.  Shall  records  of  inspection  and  tests  as  fur- 
nished by  Manufacturer  be  accepted?   

1919. 

(x)  Remarks   

  1916. 

(y)  Signed    1916. 

(z)  Date    1916. 


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THE  MANUAL 


OF  THE 


American  Railroad  Association 

SIGNAL  DIVISION 

(Formerly  Railway  Signal  Association) 


STANDARD  DESIGNS 

ISSUE  OF  1920 
Complete  to  December  31,  1919 


Compiled  for  the  Committee  of  Direction  by  the  Editing  Committee  consisting  of 
H.  S.  Balliet,  Chairman 
W.  J.  Eck,  F.  P.  Patenall, 

F.  B.  Wiegand 


Published  by  the  Association 
75  Church  Street,  New  York 


JAUMAM  aHT 


I 

American  Railroad  Association. 
Signal  Division. 


1919. 


STANDARD  DESIGNS 

INDEX— ALPHABETICAL 
1919 

TITLE. 

Adapter-base  for  ground  mast  signal  

Adjustable 

arm  cranks  and  supports  

crank  for  signals  

link  

Adjustment,  switch 


details    1390 

insulated   1392 

non-insulated    1391 

Adjusting  screw 

pipe    1002 

wire   ,   1001 

Anchor  post    1058 

Arms,  rocking  shaft   1060 

Assembly  and  details  of 

battery  chute    1230 

battery  chute,  double   1229 

battery  chute,  single   1228 

bolt  lock — multiple  unit   1095 

crank  stand — horizontal    1057 

crank  stand — multiple  unit — vertical   1067 

crank  stand — single — vertical   1066 

deflecting  stand  bar   1069 

deflecting  stand  bar,  vertical   1068 

detector  bar   1098 

dwarf  signal  mechanism   1097 

elevator— 3-cell  battery    1227 

hand  rail  for  bracket  post   1179 

pipe  carrier — assembly  of   1085 

pipe  carrier — transverse    1072 

pipe  carrier — transverse   1073 

relay  box  and  cable  post   1185 

rocking  shaft    1062 

semaphore  bearing   1194 

switch  box  connections   1223 

Bars, 

details  for  deflecting  stands   1069 

detector — details  of   1098 

Base,  adapter,  for  ground  mast  bottom  mech.  sigs   1387 

Base  for 

bridge  and  bracket  mast   1036 

cable  post   1180 

pipe  bracket  post   1038 

signal  mast    1034 

Battery, 

coppers    1088 

elevator — details  of   1227 

zinc    1087 


DRAWING. 
  1387 

  1198 

  1199 

  1019 


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2 

American  Railroad  Association. 
Signal  Division. 


1919. 


TITLE.  DRAWING. 
Battery  chute, 

assembly  of,  single  and  double   1230 

double— details  of   1229 

elevator    1227 

single— details  of    1228 

Battery,  primary, 

caustic  soda  cell. — jar   1053 

gravity,  coppers    1088 

gravity,  jar   1189 

gravity,  zinc    1087 

Battery,  storage,  stationary  lead  type, 

box  for,  concrete   1343 

box  for,  concrete — iron  details   1342 

connection  bolt    1340 

jars,  covers,  hold-downs  and  sand  trays   1224 

lead  elements    1241 

separators    1341 

thermometer    1375 

Battery,  lead  type  portable  storage   1248 

Bearings. 

crank  and  clamps   1355 

double  spectacle  and  lamp  bracket   1356 

rocker  shaft   1061 

semaphore    1082 

Binding  post    1070 

Blades  for  upper  quadrant  signals   1065 

Block 

filler   1090,  1091,  1092 

terminal    1056 

Bolt  lock — multiple  unit   1095 

Bolt,  connection — storage  battery   1340 

Bolts,  cross-arm    1220 

Bootlegs—terminal    1157 

Box, 

concrete    1343 

concrete — iron  details    1342 

junction    1155 

relay — cast  iron    1182 

stuffing  for  pipe   1225 

stuffing  for  wire   1226 

terminal   1154 

Brace  for  cross-arms   1219 

Bracket— lamp    1049 

lamp — for  two-way  single-lamp  signal   1356 

Bracket  post, 

channel  column    1032 

clamps  and  stays   1029 

crank  brackets  for   1198 

deck  for    1030 

foundation  for  channel  column,  concrete  „   1105 

foundation — pipe  post,  concrete   1108 

guides  for  vertical  connection  on   1196 

hand  rail  for — details  of   1179 

ladders    1372 


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3 

American  Railroad  Association. 
Signal  Division. 


1919. 


TITLE.  DRAWING. 

Bracket  post — Continued. 

mechanical  connections  for  6-way   1190 

mountings  for  bottom-mast  mechanism  cases  on   1033 

pipe    1039 

pipe — base  for    1038 

pipe  head  and  trunking  cap   1031 

Bracket  post  and  bridge, 

base  for    1036 

clamps  for  base   1178 

mechanical  connection  for  3  arms   1191 

Built-up  trunking    1177 

Bushing  for  cable  post   1181 

Cable  post, 

assembly  with  relay  boxes   1185 

base  for    1180 

pinnacle  and  cable  outlet   1181 

Cartridge  enclosed  fuses   1309 

Case, 

electric  lamps — details  and  assembly   1222 

Cell  jar, 

gravity  battery   1189 

signal — primary  battery    1053 

Chain  wheels, 

horizontal    1350 

vertical    1351 

vertical    1352 

Channel  and  I  beams  for  leadouts   1202 

Channel  column  bracket  post   1032 

Channel  column  bracket  post  foundation   1105 

Channel  pins   1086 

Charging  panel, 

circuit  for    1246 

electric  interlocking    1244 

generator    1379 

circuits  for  line   1420 

line    1174 

manipulation  chart  for   1247 

two-way    1174 

Chute — battery, 

assembly  of,  single  and  double   1230 

double    1229 

single    1228 

Clamps  for 

base  of  ground  signal  masts   1059 

bridge  and  bracket  mast   1178 

six-inch  pipe    1398 

two-way  single-lamp  signal   1355 

Clamps  and  stays, 

ladder    1371 

"U"  bolt    1083 

Clearance — spectacle — diagram  of   1093 


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4 

American  Railroad  Association. 
Signal  Division. 


1919. 


TITLE.  DRAWING. 

Clip  bolts — location  of— detector  bars   1099 

Compensation  chart    1102 

Compensators 

cranks    1013 

foundations    1104 

link    1017 

pipe — horizontal,  one-way    1014 

pipe — vertical,  one-way    1231 

Conduit,  vitrified  clay, 

cable — hanger  sockets,  sewer  steps  and  manhole  clevis....  1334 

duct    1335 

duct  reducers,  mandrels,  duct  plugs  and  dowel  pins   1332 

manhole,  brick    1338 

manhole,  concrete    1337 

method  of  laying,  single  and  sewer  pipe  duct   1331 

method  of  laying,  single  and  multiple  duct   1336 

Coppers,  gravity  battery   10S8 

Couplers,  pipe,  one-inch   1015 

Crank, 

adjusting  arm,  for  signals   1199 

adjusting  and  assembly   1361 

arms,  and  support   1198 

bracket  for  bracket  post   1198 

bracket  fittings  for  pipe  bracket  post  1024,  1025 

compensator  pipe    1013 

forged    1007 

foundation,  for  deflecting  bars  and  rocking  shafts   1217 

foundation  for,  and  deflecting  bars   1203 

horizontal — two-way,  separate-pin    1393 

mounted,  for  deflecting  bars   1204 

mountings  for-  -or  deflecting  bars   1205 

Crank  stands, 

assembly  of — single,  vertical   1066 

details  of  multiple — vertical   1067 

foundations    1103 

horizontal — assembly  with  two-  and  three-way   1057 

horizontal — one-  and  two-way   1011 

one-way — horizontal  details    1008 

pins    1010 

two-way — horizontal  details    1009 

two-way  separate  pin   1393 

Cross-arms    1098 

Cross-arm 

bolt    1220 

brace    1219 

pin,  standard  steel   1165 

pin  cap  gauge   1167 

pin  terminal,  steel   1166 

wood    1089 

Deck  for  pipe  and  channel  column  bracket  post   1030 


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5 

American  Railroad  Association. 
Signal  Division. 


1919. 


TITLE.  DRAWING. 

Deflecting  bars, 

foundation    1203 

foundation — cranks  and  rocking  shafts   1217 

mounted,  crank  or  bars   1204 

mounted,  bars  and  rocking  shafts   1206 

mountings  for  bars  or  cranks   1205 

Deflecting  stand,  vertical, 

details  and  assembly   10<>8 

details  of  bar   1069 

horizontal  adjustable    1396 

Detector  bars, 

assembly  and  details  of   1098 

position  of,  and  location  of  clip  bolts   1099 

Dwarf  signals,  mechanical, 

assembly  of    1097 

bearings,  top  and  base   1232 

fittings    1239 

foundation    1106 

spectacle    1233 

Elevator — battery    1227 

Eye  rods,  offset,  solid  jaw  and  solid  link— detail  and  assembly..  1195 

Filler  blocks   1090,  1091,  1092 

Fittings — for  one-inch  pipe,  operating   1195 

Forged  cranks    1007 

Foundations  for 

anchor  post    1058 

bracket  post — pipe,  concrete   1108 

channel  column  bracket  post,  concrete   1105 

compensators,  concrete    1104 

cranks  1103,  1203,  1217 

deflecting  bars  and  rocking  shafts  1203,  1217 

dwarf  signal,  concrete   1106 

ground  mast  bottom  mech.  signals   1259 

ground  mast  mechanical  signals   1107 

ladders,  cast  iron   1052 

pipe  carrier,  concrete   1080 

pipe  carrier,  cast  iron,  with  wood  top  and  bottom   1109 

rocking  shaft   1200,  1217 

signal  mast— straight,  concrete   1107 

wheel  stand,  horizontal  crank — concrete   1103 

Fuses,  cartridge,  enclosed   1309 

Glass  jars   1053 

Glass  jars   1189 

Globes, 

hand  lantern    1394 

Gravity  battery, 

cell    1189 

copper    1088 

zinc    1087 

Guide  clamps,  brackets  and  caps   1020 

Guide  clamps  for  vertical  connection   1021 

Guide  supports  and  caps   1022 

Guides  for  vertical  connection  on  signals   1023 


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6 

American  Railroad  Association. 
Signal  Division. 


TITLE.  DRAWING. 

Guides  for  vertical  connection  on  bracket  post   1196 

Hand  rail  for  bracket  post   1179 

Horizontal 

compensator,  pipe   1014 

crank  stand,  one-  and  two-way   1011 

crank  stand  assembly   1057 

foundation  for  crank  and  wheel  stands   1103 

Hydrometer   1175 

I  beams — leadout   1202 

Indication  locking   1173 

Indicator — take  siding.    (See  Specification  Section.) 
Instrument, 

ranges  and  scales   1378 

Insulation, 

one-inch  pipe  line   1094 

switch  rod    1055 

Jaws, 

pins    1010 

screw,  and  solid   1016 

slotted,  with  tang  ends   1019 

solid,  with  tang  ends   1018 

Jaws,  for  one-inch  pipe, 

screw — details  and  assembly  1016,  1019 

solid — details    1016 

solid,  with  tang  ends  1018,  1195 

solid,  with  plain  and  threaded  ends   1019 

Junction  box   1155 

Ladders, 

for  bracket  posts   1372 

for  bracket  mast  signals   1366 

for  two-way  single-lamp  signal   1357 

foundations,  cast  iron   1052 

ground  mast  signals   1365 

hand  rails   1363 

parts    1362 

platforms    1364 

Lamp,  semaphore, 

bracket    1049 

details    1100 

electric  case — details  and  assembly   1222 

equipment    1101 

incandescent  electric    1329 

Leadaway    1402 

Lead  elements    1241 

Leadouts, 

channel,  and  I  beams   1202 

mountings,  for  crank  or  deflecting  bars   1205 

cranks  and  deflecting  bars, 

foundations  for    1203 

mounted    1204 

cranks,  deflecting  bars  and  rocking  shafts  foundation  for  1217 

deflecting  bars  and  rocking  shafts,  mounted   1206 

rocking  shafts, 

foundation  for    1200 

mounted,  high  bearings   1201 

mounted,  low  bearings   1207 


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7 

American  Railroad  Association. 
Signal  Division. 


1919. 


TITLE.  DRAWING. 

Lever  stand,  double   1197 

Light,  marker   1238 

Lightning  protection, 

arrester    1424 

Link, 

adjustable    1019 

compensator   1017 

solid,  for  bracket  signals   1195 

Location  of  clip  bolt   1099 

Lock,  plunger    1096 

Lock  rod,  adjustable   1237 

Locking,  indication   1173 

Low  rocking  shaft  bearing  ,   1063 

Lug    1017 

Machine — wall  type,  two  lever  1197,  1397 

Marker  light    1238 

Manipulation  chart — charging  panel   1247 

Masts, 

base  for  bridge  and  bracket   1036 

base  for  ground  signal   1034 

clamp  for  base  of  ground  ,   1059 

foundation,  straight  signal  ,   1107 

ladders  for  bracket   1366 

ladders  for  ground   1365 

signal    1035 

Masts,  signal, 

bracket — post  and  bridge 

base    1036 

clamp  for  base   1178 

mechanical  connections,  3-arm   1191 

clamp  and  "U"bolt.....   1083 

ground 

base    1034 

clamp  for  base   1059 

ladders    1365 

guides  for  vertical  connections   1196 

ladders  for  ground   1365 

ladders  for  bracket   1366 

operating  fittings,  one-inch  pipe   1195 

pinnacle    1050 

Mechanical — connections  for 

six-  (6)  way  bracket  post   1190 

three-  (3)  way  bridge  and  bracket  post   1191 

dwarf  signal    1097 

dwarf  signal,  top  and  base  bearing   1232 

dwarf  signal  fittings   1239 

semaphore  bearings   1082 

semaphore  bearing — details    1194 

Mercury  arc  rectifier   1242 

Motor  panel   1240 

Mounted  deflecting  bars  and  rocking  shafts   1206 

Mountings  for  cranks  and  deflecting  bars   1205 

Multiple  unit  bolt  lock   1095 


Performance,  signal — forms  for  recording.    (See  Specification 
Section.) 


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8 

American  Railroad  Association. 
Signal  Division. 


1919. 


TITLE.  DRAWING. 

Pin, 

cap  gauge    1167 

channel    1086 

cross-arm,  standard  steel   1165 

jaw  and  crank   1010 

terminal,  steel    1166 

Pinnacle    1050 

Pins,  crank  and  jaw   1010 

Pipe, 

adjusting  screw,  assembly   1002 

and  coupling,  one-inch,  signal   1015 

bracket  post,  foundation   1108 

carrier,  foundation — concrete    1080 

carrier,  foundation — cast  iron  with  wood  top  and  bottom  1109 

carrier — details  and  assembly   1085 

carrier  side,  details  of   1084 

carrier  strap    1071 

carrier,  transverse — assembly  of   1072 

carrier,  transverse — details   1071,  1073 

compensation  chart — diagram  and  table  of   1102 

compensator  (one-way  horizontal)   1014 

compensator,  pipe,  one-way,  vertical   1231 

insulation    1049 

lug   1017 

stuflBng  box,  for  one-inch   1225 

Plunger  lock    1096 

Position  of  detector  bar   1099 

Post,  anchor    1058 

Post,  binding    1070 

Rectifier,  mercury  arc   1242 

Relay  box, 

assembly,  on  cable  post   1185 

sizes  "A"  and  "B"   1182 

detail,  size  "B"   1183 

detail,  size  "A"   1184 

inlet  bracket    1367 

linings  and  terminal  boards   1368 

fittings,  detail    1369 

cable  post  mountings   1374 

Rocking  shaft, 

arms    1060 

assembly — high  bearings   1062 

bearings,  high   1061,  1062 

bearings,  low   1063 

details    1061 

foundations  for    1200 

foundations,  cranks  and  deflecting  bars   1217 

mounted,  and  deflecting  bars  1201,  1206 

Screw, 

jaw  1016,  1360 

pipe  adjusting   1002 

wire  adjusting    1001 

Semaphore  bearing,  mechanical — details   1082 

assembly  and  details   1194 


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9 

American  Railroad  Association. 
Signal  Division. 


1919. 


TITLE.  DRAWING. 

Semaphore  lamp   1100 

Semaphore  spectacle, 

clearance — diagram  of    1093 

design  A   1040 

design  B    1041 

design  C   1235 

dwarf,  two-position   •   1233 

filler  block,  to  limit  travel  from  45°  to  90°  1090,  1092 

filler  block,  to  limit  travel  from  45**  to  0°  1091,  1092 

filler  block,  to  prevent  travel  from  0°   1092 

torque  curves  for,  on  electric  signals   1064 

Separator,  storage,  stationary  lead  type   1341 

Signal, 

blades   1065 

cell    1053 

crank  bearings  and  clamps  for  two-way  single-lamp   1398 

dwarf    1097 

electric  lamp  case  for   1395 

mast    1035 

operating  connection  for  mechanical  signal   1195 

one-arm  mechanical,  ground   1043 

two-arm  mechanical,  ground   1044 

three-arm  mechanical,  ground   1045 

two-way,  single,  lamp  —   1236 

Solid  jaw,  with  tang  ends.   1018 

Spectacle,  semaphore, 

design  A   1040 

design  B    1041 

design  C    1235 

Staff  tip  adapter   1459 

Stand,  crank, 

assembly  of,  horizontal   1057 

deflecting — assembly  of    1068 

horizontal,  one-  and  two-way   1011 

one-way   1008 

two-way    1009 

vertical,  multiple    1067 

vertical,  single    1066 

Stand,  low  target   1399 

Stays,  for  ladders   1371 

Steel  pins, 

cross-arm    1165 

terminal    1166 

Strap,  pipe  carrier   1071 

Straight  signal  mast — foundation   1107 

Stufiing  box, 

for  one-inch  pipe   1225 

for  wire    1226 

Switch  adjustments, 

details    1390 

insulated    1392 

non-insulated    1391 


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10 

American  Railroad  Association. 
Signal  Division. 


1919. 


TITLE.  DRAWING. 
Symbols. 

Consist  of  twelve  plates,  as  follows: 

Plates  1  and  2 — signals. 

Plate  3 — locations,  insulated  joints. 

Plate  4 — relay  boxes,  indicators,  etc. 

Plates  5  and  6 — interlocked  switches  and  derails. 

Plates  7  and  8— relays,  indicators  and  locks. 

Plates  9  and  10 — circuit  controllers. 

Plate  11 — circuit  releases,  etc. 

Plate  12 — battery,  electrical  instruments,  etc. 

Plate  13^ — explanatory  diagrams. 

These  plates  will  be  found  following  Standard  Designs. 


Switchboards, 

charging  panel,  two-way   1174 

circuits  for    1246 

electric  interlocking  charging  panels — one  main  battery 

and  duplicate  auxiliary  batteries   1244 

knife  switches  and  clips,  details   1344 

manipulation  chart  for   1247 

mercury  arc  rectifier,  panel   1242 

motor  panel   1240 

single  throw  switches   1345 

supports    1243 

Switch  box  connections   1223 

Switch  lamp    1460 

Switch  lamp  base  socket   1461 

Table  (compensation  chart)   1102 

Tang  ends  for  one-inch  pipe, 

double — details  and  assembly   1376 

lug— details    1017 

plain  and  threaded   1019 

with  solid  jaw   1018 

with  screw  jaw   1360 

Target  stand — low   1399 

Terminal  blocks    1056 

Terminal  box,  and  bootleg   1154 

Testing, 

adjustable  resistance  for   1422 

Test  chart, 

ballast  and  rail  resistance   6 

track  circuit    4 

(See  Specification  for  Ranges  and  Scales  for  B.C.  In- 
struments. ) 

Thermometer    1375 

Top  of  ladder   1027 

Torque  curves  for  semaphore  spectacle   1064 


01 


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II 

American  Railroad  Association, 
Signal  Division. 


1919. 


TITLE.  DRAWING. 
Trunking, 

bootleg  terminal    1157 

built-up    1177 

grooved    1176 

junction  box   1155 

to  be  used  when  wires  are  placed  underground  in  pe- 
troleum asphaltum   1156 

terminal  box  and  bootleg   1154 

Turn  in  pipe  run   1400 

"U"  bolt  and  clamp   1083 

Vertical  crank  stand, 

multiple   1067 

single   1066 

Vertical  connections,  guide  for  1021,  1023 

Vertical  connections,  guides  for  bracket  post   1196 

Vertical  deflecting  stands — details  and  assembly   1068 

Wall— machine,  two  lever  1197,  1397 

Wheel, 

horizontal  chain  ,1350 

vertical  chain,  high   1352 

vertical  chain,  low   1351 

Wheel  stand,  horizontal  crank — foundation   1103 

Wire,  , 

adjusting  screw    1001 

stuffing  box   1226 

Zinc,  gravity  battery   1087 


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I 

American  Railroad  Association. 
Signal  Division. 


1919. 


STANDARD  DESIGNS 

INDEX— NUMERICAL 
1919 

No.  TITLE.  Original.     Latest  Rev. 

4.    Track    Circuit    Test    Chart  (See 
Specification     for     Ranges  and 

Scales  for  D.C.  Instruments)  .  .  .    Mar.,    1916    Mar.,  1917 
6.    Ballast   and   Rail   Resistance  Test 
Chart      (See     Specification  for 
Ranges  and  Scales  for  D.C.  In- 

-.nn.       a   ^^"""^"^^^^^Ky."  : O^t,      1917     Nov.,  1917 

1001.  Screw,  Wire  Adjusting   ^gog    Oct  1913 

1002.  Screw,  Pipe  Adjusting   j)''     -.one    w^h  iqia 

1007.  Cranks— Forged,  Details  of  (Form-  '  ' 

erly  Right  Angle  Cranks)   Dec,    1908    Nov.,  1913 

1008.  Crank  Stand — One-way  Horizontal, 

Details    of    (Formerly  One-way 

Crank  Stand)    Dec,    1908    June,  1913 

1009.  Crank  Stand — Two-way  Horizontal, 

Details   of    (Formerly  Two-way^i?^- 
-.n.n     ^. Crank  Stand)   ^Dec,    1908    June,  1913 

1010.  Pms — Crank   and   Jaw  (Formerly 

One-  and  Two  way  Crank  Pins)  .    Dec,    1908    Sept.,  1915 

1011.  Crank  Stands — One  and  Two-way 

Horizontal    (Formerly  One-way 

Crank  Stand,  Complete)   Dec,    1908    Nov.,  1913 

1013.  Cranks — Pipe  Compensator  (Form-^^ 

erly  One-way  Compensator  Base,^S"'  ' 
....         See  1014,  Nov.,  1913)   Dec,    1908    Nov.,  1913 

1014.  Pipe  Compensator — One  way  Hori- 

zontal  (Formerly  Pipe  Compen- 
sator)   Dec,    1908    Mar.,  1919 

1015.  Pipe    and    Coupling — One-inch,'^ 

Signal   '   Dec,    1908    Mar.,  1915 

1016.  Jaw — Screw  and   Solid  (Formerly 

Straight  Solid  Jaw,  See  1018M, 

Nov.,  1913)   Dec,     1908    Sept.,  1916 

1017.  Link,  Lug  and  Compensator — Tang 

End  (Formerly  Offset  Solid  Jaw, 

See  1016,  1018M,  Nov.,  1913)..    Dec,    1908    Sept.,  1916 

1018.  Jaws — Solid,     with     Tang  Ends^-^ 

(Formerly     Wide     Jaws,  See"""' 

1016M,  Sept.,  1916)   Dec,    1908    Nov.,  1913 

1019.  Jaws — Tang   End   and  Adjustable 

Link  (Formerly  Slotted  Jaw,  See 

1016,  1018M,  Nov.,  1913)   Dec,    1908    Dec,  1916 

1020.  Guide  Clamps,   Bracket  and  Caps 

Formerly  Screw  Jaw)   Mar.,  1915 

1021.  Guide  Clamps  for  Vertical  Connec- 

tions on  Signals   Mar.,    1915    June,  1917 

102  2.  Guide  Supports  and  Caps  for 
Vertical  Connections  on  Signals 
(Formerly  Jaw — Solid  Butt  End)    Mar.,  1915 


JADISiHMUH  -XaaMI 


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2 

American  Railroad  Association. 
Signal  Division. 


1919. 


No.  TITLE.  Original. 

1023.  Guides  for  Vertical  Connections  on 

Signals    Mar.,  1915 

1024.  Crank   Bracket   Fittings   for  Pipe 

Bracket  Post  (Formerly  Link — 

Straight  Adjustable)    Mar.,  1915 

1025.  Crank   Bracket   Fittings   for  Pipe 

Bracket  Post  (Formerly  Link — 

Solid  Steel  Forging)   Mar.,  1915 

102  6.    Ladders — Ground    Masts,  Mechan- 
ical Signals    Dec,  1908 

1027.  Ladder*  Top  of   Dec,  1908 

102  8.    Ladders    for    Bracket    Posts  and 

Mech.  Bracket  Masts   Dec,  1908 

102  9.    Ladder  Clamps  and  Stays   Dec,  1908 

1030.  Bracket  Post — Deck  for  Pipe  and 

Channel  Column  (Formerly  St'd 
Pipe  Signal  Post,  See  1035,  Sept., 
1914)    Dec,  1908 

1031.  Bracket  Post  Head  and  Trunking 

Cap,  Pipe    (Formerly  St'd  Pipe 

Signal  Post,  See  1035,  Dec. ,1915)    Dec,  1908 

1032.  Bracket     Post — Channel  Column 

(Formerly  St'd  Pipe  Signal  Post, 

See  1035,  Dec,  1915)   Oct.,  1910 

103  3.    Bracket  Posts — Mountings  for  Bot- 

tom Mast  Mechanism  Cases 
(Formerly  Jaw  Pins,  See  lOlOM, 
Sept.,  1915)    Dec,  1908 

1034.  Base    for    Ground    Signal  Masts 

(Formerly   Base   for    6"  Signal 

Post)    ...    Dec,  1908 

1035.  Masts,    Signal    (Formerly  Ground 

Signal  Masts)    Mar.  1910 

103  6.    Base  for  Bridge  and  Bracket  Masts    Mar.  1910 

1038.  Base  for  Pipe  Bracket  Post   Oct.,  1910 

1039.  Bracket  Post,  Pipe   Oct.,  1910 

1040.  Spectacle — Semaphore,  Design  "A"    Oct.,  1909 

1041.  Spectacle — Semaphore,  Design  "B"    Oct.,  1909 

1043.  One-Arm  Mech.  Ground  Signal....    Dec,  1910 

1044.  Two-Arm  Mech.  Ground  Signal...    Dec,  1910 

1045.  Three-Arm  Mech.  Ground  Signal..    Dec,  1910 

1049.  Lamp  Bracket — Adjustable,  Details 

and  Assembly    Oct.,  1910 

1050.  Pinnacle    Mar.,  1910 

1052.  Ladder  Foundation   June.  1910 

1053.  Round  Jars  and  Covers  (Formerly 

Cell — Signal,  Caustic  Soda  Prim- 
ary Battery)    Oct.,  191 

1055.  Switch  Rod  Insulation  (Formerly 

Terminal  Block,  See  1056M,  Oct., 

1916)    Oct.,  1910 

1056.  Terminal  Blocks   .    Mar.,  1912 

1057.  Crank  Stands — Horizontal,  Assem- 

bly with  2  and  3  Cranks   Oct.,  1912 

1058.  Anchor  Post    Mar.,  I9l3 


Latest  Rev. 


Obsolete. 
Obsolete. 

Obsolete. 
Obsolete. 


May,  1914 

May,  1914 

May,  1914 

Sept.,  1914 

Jan.,  1914 


Dec, 
Feb., 
Oct., 
May, 
May, 
May, 
Sept, 
Sept, 
Sept, 

Mar, 
Feb., 
Dec, 


1915 
1914 
1913 
1914 
1913 
1913 
1915 
1915 
1915 

1914 
1914 
1913 


June,  1918 


Sept.,  1914 
Oct.,  1916 

Feb.,  1914 


X  IV.  I 


8001 

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80ei 


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3 

American  Railroad  Association. 
Signal  Division. 


1919. 


No. 

TITLE. 

Original. 

Latest  Rev. 

1059. 

Clamp  for  Base  of  Ground  Mast 

Signals   

Oct., 

1911 

Dec, 

1915 

1060. 

Rocking  Shaft  Arms  

Mar., 

1912 

Oct., 

1912 

1061. 

Rocking  Shaft  Bearings  

Mar., 

1912 

Dec, 

1912 

1062. 

Rocking  Shaft — Assembly  and  De- 

tails   

Mar., 

1912 

Dec, 

1912 

1063. 

Rocking  Shaft — Low  Bearing  

Oct., 

1912 

Oct., 

1913 

1064. 

Torque  Curves  for  Elec.  Semaphore 

Spectacles   

UCC, 

1  Q1  9 

1912 

1065. 

UCl., 

1  Q1 1 

Miar., 

1918 

1066. 

Crank  Stand — Single  Vertical,  De- 

tails and  Assembly  of  

Oct., 

1911 

Nov., 

1913 

1067. 

Crank     Stand — Multiple  Vertical, 

Details  of  

O-ct., 

1911 

Nov., 

1913 

1068. 

Deflecting     Stands — Vertical,  De- 

tails and  Assembly  of  

Oct., 

1911 

Dec, 

1917 

1069. 

Deflecting  Stand  Bar — Details  of.  . 

Oct., 

1912 

Oct., 

1917 

1070. 

Binding  Post   (Formerly  Nut  and 

J  une. 

1910 

Sept., 

1915 

1071. 

Pipe  Carrier,  Strap  

1  Q1 1 

1913 

1072. 

Pipe  Carriers — Transverse,  Assem- 

bly of   

Oct., 

1911 

Dec, 

1913 

1073. 

Pipe  Carriers — Transverse,  Details 

of   

Oct., 

1911 

Mar., 

1916 

1080. 

Foundations    for    Pipe    Carriers — 

Concrete   

June, 

1910 

Feb., 

1914 

1082. 

Bearing — Semaphore,  Mechanical. . 

Oct., 

1910 

Sept., 

1916 

1083. 

"U"  Bolt  and  Clamp  

Oct., 

1910 

Feb., 

1914 

1084. 

Pipe  Carrier  Side  

June 

1912 

Oct., 

1913 

1085. 

Pipe  Carrier — Details  and  Assem- 

bly of   

June, 

1912 

June, 

1913 

1086. 

Oct., 

1910 

Oct., 

1912 

1087. 

Zinc — Gravity  Battery   

June, 

1911 

Oct., 

1913 

1088. 

Coppers — Gravity  Battery   

June, 

1911 

Oct., 

1913 

1089. 

Cross-arms,  Wood  

Oct., 

1911 

Oct., 

1912 

1090. 

Filler  Block — To  Limit  Travel  of!, 

Signal  Arms   ""^ 

Oct., 

1911 

Dec, 

1913 

1091. 

Filler  Block — To  Limit  Travel  of 

Signal  Arms   

Opt 

1911 

Dec 

1913 

1092. 

Filler    Block — To    Prevent  Travel 

of  Signal  Arms  

Oct., 

1911 

Dec, 

1913 

1093. 

Spectacle  Clearance — Diagram  of. . 

Oct., 

1911 

Dec, 

1913 

1094. 

Pipe  Line  Insulation — One-inch... 

Oct., 

1911 

Sept., 

1916 

1095. 

Bolt — Lock,  Multiple  Unit,  Details 

Oct., 

1911 

Mar., 

1917 

1096. 

Plunger  Lock — Details  and  Assem- 

bly of   

Oct., 

1911 

Aug., 

1914 

1097. 

Dwarf  Signal — Mechanical,  Assem- 

bly of   

Oct., 

1911 

Sept., 

1914 

1098. 

Detector  Bars — Details  and  Assem- 

bly of   

Mar., 

1912 

Oct., 

1917 

1099. 

Detector  Bar — Position  of  and  Lo- 
cation  of   Clip   Bolt  (Formerly 
Detector   Bars,   See   1098,  Oct., 

1917)   

Mar., 

1912 

June, 

1913 

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4 

American  Railroad  Association. 
Signal  Division. 


1919. 


No.          TITLE.  Original.     Latest  Rev. 

1100.  Lamp,  Semaphore    Dec,  1908    June,  1918 

1101.  Oil    Fount    for    Semaphore  Lamp 

(Formerly  Lamp  Equipment)...  June,  1910    April,  1914 

1102.  Compensation  Chart   Oct.,  1909    Oct.,  1919 

1103.  Foundation   for   Horizontal  Crank 

and  Wheel  Stands,  Concrete   Oct.,  1909    Oct.,  1913 

1104.  Foundation  for  Compensator,  Con- 

crete   Oct.,  1909    Mar.,  1913 

1105.  Foundation    for    Channel  Column 

Bracket  Post,  Concrete   Oct.,  1909    Oct.,  1913 

1106.  Foundation  for  Dwarf  Signal,  Con- 

crete   Oct.,  1909    Mar.,  1913 

1107.  Foundation  for  Ground  Mast  Me- 

chanical Signals    Oct.,  1909    May,  1916 

1108.  Foundation  for  Pipe  Bracket  Post, 

Concrete    Oct.,  1909    Oct.,  1913 

1109.  Foundation  for  Pipe  Carrier,  Con- 

crete   Dec,  1908    Doc,  1909 

1154.  Box  and  Bootleg,  Terminal   Dec,  1911 

1155.  Box,  Junction    '  1911 

1156.  Trunking    Dec,  191l 

1157.  Bootleg,  Terminal    Dec,  1911 

1165.  Pin — Steel,  Cross-arm,  Standard..  Mar.',  1912    Oct.,  1912 

1166.  Pin — Steel,  Terminal,  Cross-arm..  Mar.i  1912    Oct.,  1912 

1167.  Pin  Cap  Gauge,  Cross-arm   Mar.,  1912 

1173.  Indication  Locking    June,  1912 

1174.  Charging  Panels — Line   June,  1912    Sept.,  1916 

1175.  Hydrometer    May,  1915    Sept.,  1916 

1176.  Trunking  Grooved    May,  1912 

1177.  Trunking,   Built-up   May'  1912 

1178.  Clamps   for   Base   of   Bridge  and 

Bracket  Masts   Oct.,  1912    Feb.,  1914 

1179.  Handrail   for   Bracket   Posts — De- 

tails and  Assembly  of   Oct ,  1912 

1180.  Cable  Post,  Base  for   june,  1912    Oct.,  1912 

1181.  Cable  Post,  Cap  and  Bushing  for.  .  June,'  1912    June,  1917 

1182.  Relay  Box,  Cast  Iron   June'  1912    June,  1917 

118  3.    Relay  Box  Details   jmie',  1917    Oct.,  1917 

1184.  Relay  Box  Details   june,'  1917    Oct.,  1917 

1185.  Relay  Boxes  and  Cable  Posts,  As- 

sembly of    June,  1912    June,  1917 

1189.  Jar,  Gravity  Cell   Oct.,  1913  Obsolete. 

1190.  Bracket  Post — Mechanical  Connec- 

tions for  Six-way   Oct.,  1912 

1191.  Bridge    and    Bracket    Masts — Me- 

chanical Connection  for  Three- 

,  _        arm    Oct.,  1912 

1194.  Bearings — Mechanical  Semaphore, 

Details  and  Assembly  of   Oct.,  1912    Mar.,  1917 

1195.  Pipe — One-inch,  Operating  Fittings  Oct.,  1912    Mar.,  1917 

1196.  Guides  for  Vertical  Connections  on 

Bracket  Posts    Oct.,  1912    Mar.,  1915 

1197.  Two-Lever  Wall  Machine  (Former- 

ly Lever  Stand,  Double)   Oct.,  1912    Dec.  1915 


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5 

American  Railroad  Association. 
Signal  Division. 


1919. 


No.  TITLE. 

1198.  Crank  Bracket  for  Bracket  Posts 

(Formerly  Cranks — Adjustable,.^ 
Arm  and  Support)  

1199.  Crank  for  Signals — Adjusting  

1200.  Tower    Leadouts — Foundation  for 

Rocking  Shafts   

1201.  Tower  Leadouts — Mounted  Rock- 

ing Shafts  

1202.  Tower  Leadouts — Detail  of,  Chan- 

nel and  I  Beams  

1203.  Tower    Leadouts — Foundation  for 

Cranks  and  Deflecting  Bars  

1204.  Tower  Leadouts — Mounted  Cranks 

and  Deflecting  Bars  

1205.  Tower     Leadouts — Details  of. 

Mountings  for  Crank  and  Deflect- 
ing Bars  

1206.  Tower  Leadouts — Mounted  Deflect- 

ing Bars  and  Rocking  Shafts.  .  . 

1207.  Tower    Leadouts — Mounted  Rock- 

ing Shafts,  Low  Bearing  

1217.  Tower  Leadouts — Foundation  for 
Crank,  Deflecting  Bars  and  Rock- 
ing Shafts   

1219.  Cross-arm  Brace   

1220.  Cross-arm  Bolts   

1222.  Electric   Lamp   Case — Details  and 

Assembly   

1223.  Switch  Box  Connections  

122  4.    Jars — Storage      Battery,  Covers, 

Hold  Downs,  and  Sand  Trays 
(Formerly  Lead  Type  Storage 
Battery)   

122  5.    Stuffing  Box  for  One-inch  Pipe.  .  .  . 

1226.  Stuffing  Box  for  Wire  

1227.  Battery  Elevator — Details  and  As- 

sembly   

1228.  Battery  Chute — Details  of  Single.  . 

1229.  Battery  Chute — Details  of  Double. 

1230.  Battery  Chutes — Assembly  of  

1231.  Pipe  Compensator — Vertical  Type, 

One-way   

1232.  Dwarf     Signal — Mechanical,  Top 

and  Base  Bearing  

1233.  Mechanical  Dwarf  Signal  Spectacles 

and     Lamp     Bracket  Supports 
(Formerly    Spectacle — D  w  a  r  f , 
Two  Position,  Upper  Quadrant)  . 
1235.    Semaphore  Spectacle — Design  "C"  . 

123  6.    Signal — Two-way,  Single  Lamp... 

1237.    Lock  Rod,  Adjustable  

123  8.    Marker  Light   


Original.     Latest  Rev. 


Oct.,^ 
Oct., 

1912 
1912 

Mar., 
Sept., 

1915 
1914 

June, 

1912 

June, 

1912 

June, 

1912 

June, 

1912 

June, 

1912 

June, 

1912 

June, 

1912 

May, 

1914 

Oct., 
Oct., 

1912 
1912 

Oct., 

1912 

Oct., 
Oct., 

1912 
1912 

Dec, 
Aug., 

1918 
1914 

Oct., 
Oct., 
Oct., 

1912 
1912 
1912 

Dec, 
Mar., 
Mar., 

1  Q1  Q 

1913 
1916 

Oct., 

UCl., 

Oct., 
Oct., 

1912 

1  Q1  9 

1912 
1912 

Sept., 
Dec 
Dec] 
Dec, 

1916 
1912 
1912 
1912 

Mar., 

1914 

Sept., 

1914 

Oct., 

1912 

Sept., 

1914 

Mar., 

1916 

Mar., 

1914 

Mar., 

1916 

May, 

1914 

Mar., 

1914 

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6 

American  Railroad  Association. 
Signal  Division. 


1919. 


No.          TITLE,  Original.     Latest  Rev. 
1239.    Dwarf  Signal  Fittings,  Mechanical 
(Formerly  Details  and  Assembly 
of  Switch  Box  Connections,  See 

1223)    Oct.,  1913    Sept.,  1914 

12  40.    Motor  Panel    Mar.,  1913 

1241.  Lead  Elements    June,  1913    Mar.,  1911 

1242.  Mercury  Arc  Rectifier  Panel   June,  1913 

1243.  Switchboard  Supports    June,  1918    Oct.,  1913 

12  44.    Charging    Panels,    Electric  Inter- 

locking   June,  1913 

1246.  Charging  Panels,  Circuits  for  Elec- 

tric Interlocking    June,  1913 

1247.  Charging      Panels,  Manipulation 

Chart  for  Electric  Interlocking. .  June,  1913 

1248.  Lead  Type  Portable  Storage  Battery  Mar.,  1916 
125  9.    Foundation  for  Ground  Mast  Bot- 
tom Mechanism  Signals   May,  1916 

1309.    Fuses,  Cartridge  Enclosed   Mar.,  1913    Oct.,  1914 

1329.    Incandescent  Electric  Lamps   Sept.,  1914 

1331.  Pipe  Duct,  Method  of  Laying  Single  ,,,, 

and  Sewer.  Oct.,  1913    Sept.,  1914 

1332.  Duct    Reducers,    Mandrels,  Duct 

Plugs  and  Dowel  Pins   Oct.,  1913    Sept.,  1914 

1333.  Manhole    Frame,    10"    high,  and 

Cover    Oct.,  1913    Sept.,  1914 

1334.  Cable  Hanger  Sockets,  Sewer  Steps 

and  Manhole  Clevis   Oct.,  1913    Sept.,  1914 

1335.  Duct,  Vitrified  Clay   Oct.,  1913 

13  3  6.    Duct,  Method  of  Laying  Single  and 

Multiple    Oct.,  1913 

1337.    Manhole,  Concrete    Oct.,  1913    Sept.,  1914 

133  8.    Manhole,  Brick    Oct.,  1913    Sept.,  1914 

1339.  Manhole  Frame,  4"  high,  and  Cover  May,  1914    Sept.,  1914 

1340.  Bolt — Storage  Battery  Connection, 

Lead  Type    Mar.,  1914 

1341.  Separator — Storage   Battery,  Lead 

Type    Mar.,  1914    Sept.,  1914 

1342.  Box,     Concrete — Storage  Battery, 

Iron  Details    Mar.,  1914 

1343.  Box,  Concrete — Storage  Battery...  Mar.,  1914  June,  1918 
13  44.    Knife  Switches  and  Clips   Mar.,  1914 

1345.    Switches,  Single  Throw   Mar.,  1914 

1350.  Chain  Wheels,  Horizontal   Oct..  1913 

1351.  Chain  Wheels,  Vertical   Oct.,  1913 

1352.  Chain  Wheels,  Vertical   Oct.,  191 M 

13  55.    Crank  Bearings  and  Clamps......  Mar.,  1916 

1356.  Bearing,     Double     Spectacle  and 

Lamp  Bracket   Mar.,  1916 

1357.  Ladders  for  Two-way  Single-Lamp 

Signal    Mar.,  1916 

1360.    Tang  Ends  with  Screw  Jaw   May,  1915    Dec,  1915 

13  61.    Adjusting  Crank  and  Assembly...  May,  1915 

1362.    Ladder  Parts — Details   Mar.,  1918    Dec,  1918 

13  63.    Ladder  Hand  Rails   Mar.,  1918 

13  64.    Ladder  Platforms    Mar.,  1918 

1365.    Ladders  for  Ground  Mast  Signals.  Mar.,  1917    Mar.,  1918 


d 


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;n    arex    ,^{iM   v/bI  wb-joB  dlfw  abaJa:  :§nBT  JMSX 

IX 6X    ,xnM    .  .  .  ^cldrnaaaA  biiB  ifrtBTO  snilaiicbA  .1&8X 

art'i       ,    '    .-!.ffiX    ,.ijjM   allBiea— aiiB*T  labbiilX  ,'S0-8X 

y.l'^n    ,,i}M    ....              ,  .  .BliiiH  brrisH  ,i9bl)BlI  .8dSX 

-!l<'f      'fnM                          .     ara"ro"ijBl*T  -lejbbBJ  >98X 


7 

American  Railroad  Association. 
Signal  Division. 


1919. 


No.  TITLE. 
1366.    Ladders  for  Bracket  Mast  Signals. 
13  67.    Relay  Box  Inlet  Bracket  

1368.  Relay   Box  Linings  and  Terminal 

Board   

1369.  Relay  Box  Fittings  

1371.  Ladder  Clamps  and  Stays — Details 

and  Assembly  

1372.  Ladders  for  Bracket  Posts  

1374.  Relay  Box  and  Cable  Post  Mount- 

ings   

1375.  Thermometer      (Stationary  Lead 

Type  Storage  Battery)  

1376.  Double    Tang    Ends — Details  and 

Assembly   

13  78.  Scale  Ranges  for  Electrical  Instru- 
ments  

137  9.    Charging  Panels,  Generator  

13  87.    Adapter — Base    for    Ground  Mast 

Bottom  Mechanism  Signals  

138  8.    Graphical  Representation  of  Elec- 

tric Energy  Supply  for  Power 
Interlocking   

13  89.  Graphical  Representation  of  Air 
Supply  for  Pneumatic  Interlock- 
ing   

13  90.    Switch  Adjustment — Details   

13  91.    Switch  Adjustment — Non-insulated 

1392.  Switch  Adjustment — Insulated.... 

1393.  Crank  Stand,  Horizontal — Two-way 

Separate-pin   

13  94.    Globes — Hand  Lantern   

1395.    Electric  Lamp  Case  (For  Signals) 

— Details   

13  96.    Stands — Horizontal  Adjustable  De- , 

fleeting   ■  ■ 

13  97.    Two-Lever  Wall  Machine  

13  98.    Crank  Bearings  and  Clamps  for  6" 

Pipe  (For  Two-way  Single-lamp 

Signal)   

1399.  Low  Target  Stand  

1400.  Turn  in  Pipe  Run  

1402.  Leadaway   

1420.    Circuits  for  Line  Charging  Panels. 
1422.    Adjustable   Resistance    (For  Test- 
ing)   

1424.    Lightning  Arrester  Grounds  

145  9.    Staff  Tip  Adapter  

1460.  Switch  Lamp   

1461.  Switch  Lamp  Base-Socket  


Original. 

Latest  Rev. 

Mar., 

1918 

June, 

1917 

June, 

1917 

June, 

1917 

Oct., 

1917 

Mar., 

1917 

Dec, 

1918 

Mar., 

1918 

June, 

1917 

Oct., 

1917 

Nov., 

1917 

Mar., 

1918 

Mar., 

1917 

oepi.. 

May, 

1916 

Sept., 

1916 

May, 

-t  m  X 

lyio 

oepi., 

May, 

1915 

May, 

1915 

Sept., 

1916 

May, 

1915 

Sept., 

1916 

Sept., 

1916 

Sept., 

1916 

Mar., 

1917 

Dec, 

1917 

Mar. 

1917 

Dec, 

1918 

June 

1917 

Oct., 

1917 

Sept., 

1915 

Dec, 

1915 

June, 

1918 

Mar., 

1916 

Mar., 

1916 

June, 

1916 

Mar., 

1916 

June, 

191G 

Seiyt., 

1916 

June, 

1918 

Mar., 

1917 

Nov., 

1917 

Sept., 

1919 

Sept., 

1919 

Sept., 

1919 

"       8:sni 

nei    ....  '>0         "  '.  (^ie.tiJ3a  a^fiioia  ofltT  , 


ujT  .00  tx 

,  .SOM 

^^^^              ,                                                        ;,T  fl^;i8  ..esfrl 

.  .  qrutui  doJiwa  .OB^r 

-51  qntfsJ  doJiwg  .I8tr 


American  Railroad  Association. 
Signal  Division. 


H4l  .  f.  T 


I0I4I  BASE 

(CAST  iron) 


0  3       6       9  « 

1  I  ■  I  I  I  I 


SCALES  OF  INCHES 


4x3-C0TTER 


SECTION  A-A 


^       10142  BASE    (  WITH  PINS  lOIOI  &  COTTERS  ) 

10143  ASSEMBLY  (  WITH  I0I3I  &  10134  ) 

10144  ASSEMBLY  (  WITH  10132  &.  10135  ) 

10145  ASSEMBLY  (WITH  10133 &  10136  ) 


|"xl^ -COTTER 


NOTE:  WHEN  ORDERING  APPAR- 
ATUS OR  PARTS  SHOWN  ON  THIS 
PLAN  GIVE  NUMBER  AND  NAME 
APPEARING  IN  LARGE  TYPE. 


ONE-WAY  HORIZONTAL  PIPE  COMPENSATOR 

(DETAILS  AND  ASSEMBLY) 


TMftW.1919  [MANUAL-  NOV- 1913  IDEC.  1908 


RSA 
1014 


-mi. 


i  ( r-:ij3TTOo  A  iOiO;  i*tr^  nivfi  : 


1 — r 


American  Railroad  Association. 
Signal  Division. 


28" 


t^scexr-fiw  rne-  a^^/ta/  r£/^/*£/?,tTvKe  for  tmc  Locfiury 
£3  wr^  rws  A/tiMBMe.  A^a/tK  caen  oet/^os  line  ro  RepeesKNr 
\  ffy  Ayii/Afg  /*/  7Vf£  £j^j>rr  aftitefrers . 

/t  G/V£N    TeMfS»ATUire  ANO  LENISTN    OF  PIP£,  /MTeR- 

o  setnoM  Off  oaLisv£  line-  co/?»£s/*okdih9  to 

^        ye/^PSff/tTUfee  ths  r//^£  rnr  coMP£Nstrroit  is 

TO  oe  ser,  mto  rue  vfitrtcfiL  linm  eo/tasafiotiou/e 

TV   yVifjr    LENGTH    OP  PlP£    To  e£  eOf^P£NSl97-et> . 
O  /^LLOy^   AfLCA/S    TH£   AI£Pf!£Sr  A/O/VIZONTMl. 

^     c/ii/£  re  rM£  cepr  and  ecr  ip£aoimc  om  scalc. 


7 


/ 


F/MO  coi^PSi^siiroff  c£Nr£Ks  pox  I9 

^IP£  LINE    7Ct>PT  LOA/S,  rff£  ITMPeR- 
/7TVf^E  BElfJQ  ya^K 


AsSUMC  THE  PTPlVA/  T£/^.P£/?/l7Vff£ 
19 r  rAI£  PLPC£  OP  lAfSTftLLHr/ON  IS 
P-Ot/Afff  TO  B£  -SiO^^    /a  TMS  Cl9S£ 
TH£  yO^LlUe  iV/LL  B£  TMS 
S£COJ^O  a£LOtV  Tl^£  lA>KlirONrAL 

fAfri'iss£e7/ON  oprn/is 
LiNe  yyir»  VB/eriCflc  lin£  mukit- 
£p  7aOpK,  Pouoiv  i^j.oive 
//enisesr  Ho/?izoNT/ii.  lim£  to 

L£PT  ^erriNS  a  ^l-f!PIN<3  OP 

CO/>^P£.VS/!TOJf  e£NT£irS. 


/ 


V/iLues  OP  O  '/ifS£  Bfiseo 

OAf  .08  Ofi  0M  /NCN  CO£PPiei£Nr  OP  EXPANSION 

POK  l*N  mCKPNSCOP  /O"^  POfl  £NCH  /OOPT  OP  LINE 
^NP    N£»/t£ST j^'  IS  Glt/£N. 


-//•• 
mFor 

faO/MLEN^S  POP'/i' PO/t  vitPiOUS  ypmps 

jOP 

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B'S 

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£9 

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^^ 

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39 

3C 

33 

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30 

a« 

70 

s* 

SO 

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117 

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67 

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176 

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1*1 

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70 

/«« 

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137 

laa 

fn 

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lOX 

91 

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ao 

as 

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laa 

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904 

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S94 

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COMPENSATION  CHART. 


I  I  )pcr  \»(3  \stSlU9l$\DECI9l7  \oCT.  1917  \maNUAL-JMAR.  I9<3  [oCT  >9o7  1 1  02 


— 

-AS 


if  ^ 

..  .  -  -  •■•■^   ■     ■    ^  J? 


I,  i 

2S 


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1 

-  ^ 


American  Railroad  Association. 
Signal  Division. 


A.H. 

BATTERY  JARS 

SAND  TRAYS 

CELL  COVERS 

HOLD-DOWmS 

ref.no. 

A 

B 

c 

D 

E 

REF.  NO. 

F 

6 

REF  NO. 

H 

J 

REF  NO. 

K 

st'd. 

MIN. 

MAX 

st'd 

MIN. 

MN. 

MAX. 

MIN 

MAX 

40 

12241 

i- 

i- 

4' 

5" 

ll' 

'1- 

^• 

5i' 

122401 

6z" 

12241 1 

4" 

122421 

80 

12242 

si- 

5i' 

ei' 

5i- 

6" 

122402 

ri- 

122412 

« 

'I 

120 

12243 

si' 

7' 

izr 

8i" 

9i" 

6i- 

A' 

122403 

ll' 

Bi" 

122413 

122422 

5i- 

200 

12244 

4' 

io|" 

si- 

9i- 

sr 

"i" 

122404 

ll' 

4' 

122414 

si' 

122423 

9" 

240 

12245 

«r 

'i' 

17" 

Mi- 

122405 

122415 

122424 

400 

12246 

4 

17' 

Mi- 

4- 

4" 

122406 

•4' 

122416 

8j' 

122423 

9" 

NOTE:  A  VARIATION  OF  ^" EACH  WAY  FROM  STANDARD  SHALL  BE  PERMITTED  IN  DIMENSIONS  'C"F' AND  '6' 


ELECTROLYTE  LINE 


B 


BATTERY  JA 

SIDES  AND  BOTTOM  OF  JAR  SHALL 
AND  SHALL  BE  CLEAR,  UNIFORM  AND 


B^?'THICK,(g'MIN.J* 
'  REE  FROM  BLOW  HOLE: 


MAX.) 


 ^ — a-L  1_ 


SAND  TRAY. 

SAND  TRAYS  FOR  240  AH  AND  400  AM  JARS 
SHALL  HAVE  NINE  ( 9 )  INSULATOR  FEET. 


NOTES :  CAPACITY  OF  JAR  SHALL  BE 
MOULDED  OR  ETCHED  IN  GLASS 
OF  JAR  AND  SAND  TRAY. 
CELL  COVERS  AND  HOLD-DOWNS 
SHALL  HAVE  ROUNDED  EDGES  AND 
CORNERS. 

WHEN  ORDERING  APPARATUS  OR 
PARTS  SHOWN  ON  THIS  PLAN, 
GIVE  NUMBER  AND  NAME  APPEAR- 
ING IN  LARGE  TYPE. 


CELL  COVER. 

SHEET  GLASS  jjVo  j"  THICK, 
CORRUGATED  ON  ONE  SIDE  PAR- 
ALLEL TO  DIMENSION  'J  '. 


1  !^D 

L_K — I 

HOLD-DOWN. 

2  REQ'D  for  240  ARANO 
400  A.H.  CELLS. 


0    12   3   4   5  6 

La^j  I  I  I  I  I 

SCALE  OF  INCHES. 


STORAGE  BATTERY  JARS,  COVERS,  HOLD-DOWNS  AND  SAND  TRAYS. 

STATIONARY  TYPE. 


1224 


T  r 


|DeC\9l9  |MAg.l9»5  |SE:PT)9U  |0CTI9\2 


r,c  ^nVoozxK  bftoiVifiSl  nBoh^mK 


?SAt  YSGTTAIs 


1fL_**  iiul''' 


\ — v--f--r-:i 


1; 


M!I*.QT<» 


If?  (  C^KI 


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 1  ^  -A 


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i  t — i- .  j.a~; 


.wr^voa  JJ33 

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V  r-)  G3Q.-III0K! 

3KW0v  J-!0H         afiiVOa  JJ33 


.3qvr  r«AM0lT/»T2  


American  Railroad  Association. 
Signal  Division. 


CUPPED 


NOTE:  DIMENSIONS  OF  STWF  SOCKET 
VIZ:  A*  B*C*D  MO  E  TO 

STAFF  TIP  ON  WHICH  IT  B  TO  BE  USED. 


SCALE  AND  ALL  DIMENSIONS 
ARE  aVEN  IN  INCHES 


U5.ST0.TAP 


NOTE:  WHEN  ORDERING  APPARATUS  OR 
PARTS  SHOWN  ON  mZ  PLAN  6IVE  NUM- 
BER AND  NAME  APPEARING  IN  URGE  TYPE. 


STAFF  TIP  ADAPTER 


1459 


I      I  I 


ISEP.l9l9lMAR.i9i9 


American  Railroad  Association. 
Signal  Division. 


^  

SCALE  AND  ALL  DIMENSIONS  ARE  GIVEN  IN  INCHES  \\  / 

w.  / 


P  5b)couiras 

D   44  J  REARED. 

AS  AH  ALTERNATIVE  EITHER  4* 
OR  5  m.LENSES  m<  BE  USED. 
FOCAL  DISTANCE  3^  . 

m  Discs  10  M.  SPECIFY 
COLOR  AND  FOR  SIZE  OF  LENS 


REQUIRED. 
LAMPS 


WITH  TOP  «>EN1N6  SHAa 
HAVE  H1N6E  SO  ARRANGED  THAT 
DAY  DISCS  m  BE  APPUEO. 
.    WHERE  DAT  DISCS  ARE  USED 
p    THE  EXTENDED  WICK  RAISINS 
I    SHAFT  SHALL  BE  FURNISHED. 

BODY  OF  LAMP  SHALL  BE 
MADE  OF  NO.  20  A.  W.  6. 
SHEET  STEEL 


BASE  OF  3!  OZ.FOUliy 


^auOrWICX  SHAFT 


1461 1 


14591 


SWITCH  LAMP  (CYUNDRICALTYPE) 


I  r 


1  T 


1 — r 


1460 


^  3X2  89^  cm  mm 
sjm  mm  w  nrm  m^i 


mi 


//a  e  « 


mi  m  233K1  m  .M!«s  |  ^jofoiw  /        i  \ 

aW2IASH«W  OmTfflB  mt  p   ^  \ 

.flaMlMStjl  ia  XMWS  T¥.^  '■  ^  ■ 

3 .*  OS    w  3**e  i 

Mm  um 


tw»g"i«B*  16.15' 


mi 


MM 


American  Railroad  Association 


SIGNAL  DIVISION 


R.  H.  AISHTON,  President.  F.  W.  PFLEGING,  Chairman. 

W.  T.  TYLER.  First  Vice-President.  F.  B.  WIEGAND,  First  Vice-C  hairman. 

E.  H.  COAPMAN,  Second  Vice-President.  C.  A.  CHRISTOFFERSON 

J.  E.  FAIRBANKS,  General  Secretary  and  Treasurer.  Second  Vice-Chairman. 

H.  J.  FORSTER,  Assistant  General  Secretary  and      H.  S.  BALLIET.  Secretary 
Assistant  Treasurer. 


75  Church  Street,  New  York,  August  15,  192  0. 

ERRATA  SHEET—REVISION  OF  MANUAL,  1920 

This  sheet  is  issued  to  correct  certain  irregularities  existing  in 
ALL  MANUALS  and  in  the  1920  Instruction  Sheet. 

Will  you  please  check  all  of  the  subjects  listed  in  the  Instruction 
sheet  and  determine  whether  your  Manual  corresponds  in  all  re- 
spects. If  you  find  any  irregularities  we  would  be  pleased  to  have 
you  communicate  with  the  undersigned  and  we  will  make  a  de- 
termined effort  to  assist  you  in  bringing  your  issue  up  to  date. 

THE  SECRETARY  BELIEVES  THIS  IS  IMPORTANT  IN 
ORDER  THAT  THERE  MAY  BE  NO  OPPORTUNITY  FOR 
IRREGULARITITES  TO  CREEP  IN  OR  BE  PERPETUATED  IF 
THEY  NOW  EXIST. 


Kindly  study  the  following  carefully  and  adjust  your  Manual 
after  inserting  the  1920  Additions  and  Revisions: 

DESTROY  1915  issue  of 

CONDUIT,  FIBRE,  SPECIFICATION, 

and  insert  in  its  place 
CONDUIT,  Impregnated,  Fibre — Specification — Issue  of  1918. 


Page  7,  1920  Instruction  Sheet  is  in  error  where  it  is  stated 
"Wire,  Rubber  Insulated — Specification — Five  sheets — No  change. 
Five  sheets,  should  read:  Six  sheets. 

H.  S.  BALLIET, 

Secretary. 


American  Railroad  Association 

SIGNAL  division 


REVISION  OF  MANUAL,  1920. 

Approved  by  General  Committee,  Section  II — Engineering 
March,  192  0. 
Approved  by  Executive  Committee — May,  192  0. 

IMPORTANT— REA*D  CAREFULLY. 

This  Index  has  been  prepared  for  the  purpose  of  rearranging  the 
Manual.  Enclosed  herewith  will  be  found  all  subject  matter 
adopted  by  letter  ballot  January  10,  1920,  this  material  having  been 
submitted  for  such  action  at  the  1919  Annual  Meeting. 

Prior  to  placing  this  matter  in  the  Manual  it  should  be  carefully 
noted  if  all  previous  revisions  have  been  inserted.  If  not,  it  is  neces- 
sary that  this  be  done  prior  to  inserting  the  Revisions  as  of  1920. 
In  order  to  make  it  clear  the  following  guide  is  presented: 

In  the  First  Issue  of  the  Manual  (1912),  the  Title  Page  will  show, 

"First  Edition,  1912." 
For  1913  the  Title  Page  will  show, 
"Second  Edition, 
Revised  1913." 
For  1914  the  Title  Page  will  show, 
"Second  Edition, 
Revised  1913." 
Revised  1914." 
For  1915  the  Title  Page  will  show, 
"Third  Edition, 

Including  subject  matter  approved  January  5,  1915." 
For  1916  the  Title  Page  will  show, 
"Third  Edition, 

Including  subject  matter  approved  January  10,  1916." 
For  1917  the  Title  Page  will  show, 
"Issue  of  1917, 

Complete  to  December  31,  1916." 
For  1918  the  Title  Page  will  show, 
"Issue  of  1918, 

Complete  to  December  31,  1917  " 
For  1919  the  Title  Page  will  show, 
"Issue  of  1919, 

Complete  to  December  31,  1918." 
For  192  0  the  Title  Page  will  show, 
"Issue  of  1920, 

Complete  to  December  31,  1919." 

It  will  be  noted  from  above  that  there  have  been  Additions  and 
Revisions  prepared  every  year  since  1912,  and  these  should  be  placed 
in  the  Manual  in  the  order  in  which  they  were  issued. 

It  must  be  understood  that  such  portions  of  existing  matter  now 
in  the  Manual  that  have  not  been  affected  by  any  revision,  or  have 
not  become  obsolete,  are  to  remain  intact;  where  revisions  have  been 
made  to  any  sheet  or  sheets  in  existing  specifications  it  will  be 
necessary  to  substitute  such  sheet  or  sheets. 

The  instructions,  as  shown  on  the  following  pages,  are  intended 
as  a  guide  for  inserting  all  new  matter,  substituting  Revisions  and 


removing  all  obsolete  matter,  if  carefully  followed  will  bring  the 
Manual  up  to  date. 

In  order  to  differentiate  between  new,  revised  and  obsolete  matter, 
the  following  terms  are  used: 

INSERT. — New  matter  not  previously  shown. 

SUBSTITUTE. — Existing  matter  to  be  removed  and  revision  in- 

serted. 

NO  CHANGE. — Existing  matter  to  be  left  in  its  present  location. 
OBSOLETE. — Matter  that  has*either  been  incorporated  elsewhere 
or  superseded  by  new  matter;  such  sheets  are  to  be  taken  out. 

INSTRUCTIONS  FOR  INSERTING  SUBJECT  MATTER  ADOPTED 
JANUARY,  1920. 

Care  must  be  exercised  where  matter  is  to  be  substituted,  to  be 
sure  that  only  the  sheets  affected  by  the  change  are  removed  before 
the  new  matter  is  inserted,  as  in  some  cases  the  original  may  consist 
of  two  or  more  sheets,  whereas  the  revision  may  be  confined  to  one 

sheet,  or  vice  versa.  ,     .„  ,      ^         ■  t„i,4. 

Existing  matter  to  remain  in  Manual  will  be  shown  in  light  face 

^^^New  matter  and  Revisions  to  existing  matter  now  in  Manual  will 
be  shown  in  black  face  type.  ^        .       4.  ^ 

New  matter  and  Revisions  found  in  this  package  to  be  inserted  as 

follows: 

SPECIFICATIONS. 
Title  Page,  Issue  of  1920 — One  sheet — Substitute. 
Preface — One  sheet — Substitute. 

Contents — Sheets  1  to  5,  inclusive — Five  Sheets — Substitute. 
Sub-Division  Sheet  A-B — One  sheet — Obsolete. 
Abbreviations — Two  sheets — No  change. 
Alternator — Specification — Nine  Sheets— rSubstitute. 

Automatic  Block  Signal  System,  a.c,  using  a.c.  for  Propulsion. 
Index — Three  sheets — No  change. 

Specification— Paging  1  to  3  6— Twenty-one  sheets— No  change. 
See   Index   to   Major   Specifications,   January    10,    1918 — No 

See^Mex  to   Major   Specifications,   January   18,    1919— No 
change. 

Automatic  Block  Signal  System,  a.c,  using  d.c.  for  Propulsion. 
Index — Four  sheets — No  change. 

Specification— Paging  1  to  32— Twenty-one  sheets— No  change. 
See   Index  to   Major    Specifications,   January    10,    1918 — No 

See   Index  to   Major   Specifications,   January   18,    1919 — No 
change. 

Automatic  Block  Signal  System,  a.c.  Steam  Railways,  etc. 
Index — Four  sheets — No  change. 

Specification— Paging  1  to  34— Twenty-one  sheets— No  change 
See   Index  to   Major   Specifications,   January   10,   1918 — No 
change 

See   Index  to  Major   Specifications,   January   18,   1919 — No 
change. 


3 


Automatic  Block  Signals  Operated  by  Direct  Current. 
Index — Four  sheets — No  change. 

Specification — Paging  1  to  22 — Twenty-two  sheets — No  change. 
See   Index  to   Major   Specifications,   January    10,    1918 — No 
change. 

See   Index  to   Major   Specifications,   January    18,    1919 — No 
change. 

Battery,  Primary — Specifications. 

Caustic  Soda  Cells  and  Renewals — Two  sheets — No  change. 

Caustic  Soda,  Instructions — Three  sheets— Insert. 

Coppers — One  sheet —  No  change. 

Jar — Three  sheets- — ^Insert. 

Zincs — One  sheet — No  change. 
Battery,  Storage. 

Battery  Box,  Concrete — Specification — Two  sheets — No  change. 

Charged   from   Primary   Cells — Instructions — One    sheet — No 
change. 

Electrolyte  for  Lead  Type — One  sheet — No  change. 
Installation  of  Lead  Type — Directions  for — Three  sheets — No 
change. 

Operation  at  Interlocking  Plants — Instructions — Two  sheets — 
No  change. 

Operation  in  Block  Signal  Service — Instructions — Two  sheets — 
No  change. 

Nickel,     Iron,     Alkaline — Specification — Three     sheets— No 
change. 

Nickel,  Iron,  Alkaline — Instructions — Four  sheets — No  change. 
Installation  of  Lead  Covered  Portable — Directions — One  sheet 
— No  change. 

Operation  of  Lead  Type  Portable — Instructions — Two  sheets — 
No  change. 

Lead  Type  Portable — Specificatifon — Six  sheets — Nb  change. 
Place  R.S.A.  1248  with  Standard  Designs. 

Composite  Type  Stationary — Specification — Three  sheets — No 
change. 

Lead    Type    Stationary — (Pure    Lead    Type) — Specification — 

Three  sheets — No  change. 
Lead  Type  Stationary — (Not  Pure  Lead  Type) — Specification — 

One  sheet — No  change. 
Installation  of  Lead  Type  Stationary — Directions — Two  sheets 

— No  change. 

Bell,  Annunciator — Specification — One  sheet — No  change. 
Bell,  D.C.  Vibrating — Specification — Two  sheets — No  change. 
Bridges,  Movable,  Protection  of — Requirements — Three  sheets — No 
change. 

Subdivision  Sheet  C-E — One  sheet — Obsolete. 
Cable — Specifications: 

Aerial  Aluminum — Three  sheets — No  change. 

Aerial  Braided,  660  Volts — Six  sheets — No  change. 

Armored  Submarine,  660  Volts — Eight  sheets — No  change. 

Armored  Submarine,  2200  Volts — Eight  sheets — No  change. 

Lead  Covered,  6  60  Volts — Seven  sheets — No  change. 

Lead  Covered,  2200  Volts — Seven  sheets — No  change. 

Underground  Braided,  660  Volts — Six  sheets — No  change. 
Channel  Pins — Specification — Two  sheets — No  change. 
Circuit  Nomenclature — Six  sheets — No  change. 
Clearance  Diagram — One  sheet — No  change. 


4 


Concrete — Specification — Two  sheets — No  change. 
Conduit — Specifications: 

Fibre — Two  sheets — No  change. 

Fibre    and    Metal    Systems — Installation — Four    sheets — No 
change. 

Pipe,  Steel — Two  sheets — No  change. 

Pipe,  Wrought  Iron — Two  sheets — No  change. 

Vitrified  Clay — Two  sheets — No  change. 

Vitrified  Clay  System — Installation — Three  sheets — No  change. 
Copper  Sulphate — Specification — One  sheet — No  change. 
Crossarms,  Wood — Specification — Two  sheets — No  change. 
Crossarm  Braces,  etc. — Specification — One  sheet — No  change. 
Crossarm  Pins,  Steel — Specification — Two  sheets — No  change. 
Crossarm     Through     Bolts,     etc. — Specification — One     sheet — No 
change. 

Definitions  for  Technical  Terms — Two  sheets — No  change. 
Designs,  Standard  Drawings — See  separate  list.    It  is  recommended 
that  drawings  be  placed  in  a  separate  volume  in  numerical  order. 

Engine,  Gasoline,  etc. — Specification — One  sheet — No  change. 
Subdivision  Sheet  F-L — One  sheet — Obsolete. 

Fibre,  Hard — Spectftcatlon — One  sheet — ^Insert — ^Should  have  re- 
mained in  last  year's  issue. 

Fibre,  Conduit — Impregnated — Specification — F  i  v  e  sheet  s — No 
change. 

Forms  for  Recording  Signal  Performance — Five  sheets — No  change. 
Puses — Specification — Two  sheets — No  change. 

Galvanizing  for  Iron  or  Steel — Specification — Two  sheets — No 
change. 

General  Electrical  Requirements — One  sheet — Substitute. 
General  Provisions,  Major  Specifications — Seven  Sheets — Substitute. 

Generator,  Electric — Specification — One  sheet — No  change. 
Generator,  Electric,  A.C. — Specification — ^Four  sheets — Obsolete. 
Globes,  Hand  Lantern — Specification — Four  sheets — No  change. 
Impedance  Bond — Specification — Seven  sheets — ^Substitute. 
Impregnation  Treatment,  Coils  and  Windings — Specification — Two 

sheets — No  change. 
Indications,  Principles  of  Signal — One  sheet — No  change. 
Indicator,  Take  Siding — Two  cuts — Instructions — Three  sheets — No 

change. 

Indicators,  Switch-Requisites — Two  sheets — No  change. 
Instructions  for  Testing  and  Maintaining  Dry  Cells — One  sheet — No 
change. 

Instructions  for  Maintenance  of  Gravity  Cells — Two  sheets — No 
change. 

Instructions  for  Maintenance  of  Caustic  Soda  Cells — Two  sheets — 
No  change. 

Instruments — Ranges  and  Scales  (two  cuts) — Three  sheets— No 
change. 


5 


Interlocking.  Electric. 

Index — Four  sheets — No  change. 

Specification — Paging  1  to  3  3 — Eighteen  sheets — Xo  change. 

See   Index  to    Major    Specifications,  January    10,    1918 — No 
change. 

See   Index   to   Major    Specifications.  January    is,    1919 — No 
change. 

Interlocking,  Electromechanical. 

Index — Six  sheets — No  change. 

Specification — Paging     1     to     3  7 — Thirty-seven     sheets — No 
change. 

See    Index   to    r^Iajor    Specifications.  January    10.    1918 — No 
change. 

See   Index   to    Major    Specifications.  January    IS.    1919 — No 
change. 

Interlocking,  Electropneumatic. 

Index — Four  sheets — No  change. 

Specification — Paging  1  to  3  6 — Twenty-two  sheets — No  change. 

See    Index   to    :\Iajor    Specifications,  January    10,    1918 — No 
change. 

See   Index   to    Major    Specifications,  January    IS.    1919 — No 
change. 

Interlocking,  Mechanical. 

Index — Three  sheets — No  change. 

Specification — Paging  1  to  19 — Nineteen  sheets — No  change. 

See   Index   to    Major  Specifications.  January    10,    1918 — No 
change. 

-  See   Index   to   Major  Specifications,  January    IS,    1919 — No 
change. 

Interlockiiig. 

Mechanical  Machine,  Requisites — One  sheet — Insert. 
Mechanical  Machine,  Saxby  and  Fanner — Specification — Nine 

sheets — Insert. 
Power,  Machine — Specification — Eight  sheets — ^Insert. 

Iron.  Gray  Castings — Specification —  One  sheet — No  change. 
Iron.  Malleable  Castings — Specification — One  sheet — No  change. 
Iron,  Wrought  Bars — Specification — One  sheet — No  change. 
Lamps,  Incandescent  Electric — Four  sheets — No  change. 

Lightning  Protection: 

Arresters,     Made     Ground    Apparatus — Specifications — Three 
sheets — No  change. 

Arresters — Requisites — One  sheet — No  change. 

Choke  Coils — Requisites — One  sheet — No  change. 

Vacuum  Gap  Arresters — Specification — Two  sheets — No  change. 
Sub dl vision  Sheet  M-S — One  sheet^ — Obsolete. 
Oil,  Illuminating — Specification — One  sheet — No  change. 
Oil,  Transformer — Specification — One  sheet — No  change. 
Overlaps  in  Automatic  Signal  Systems — One  sheet — No  change. 
Paint  and  Painting — Specification — Four  sheets — No  change. 
Petrolatum    for    Use    in    Impedance  Bonds — Specification — Three 

sheets —  Sub  stitute . 
Petroleum  Asphaltum — Specification — Three  sheets — No  change. 
Phrases  and  Words — One  sheet — Insert. 

Pipe  Compensation — Specification — Two  sheets — No  change. 


Pipe,  Soft  Steel — Specification— One  sheet — No  change. 
Pipe,  Wrought  Iron — Specification — One  sheet — No  change. 
Poles,  White  Cedar — Specification —  Two  sheets — No  change. 
Push  Buttons — Specification — One  sheet — No  change. 
Pushes,  Floor — Specification — One  sheet — No  change. 
Reactor — Specification — Five  sheets — No  change. 
Relay,  A.O. — Specification — Nine  sheets — Substitute. 
Relay,    D.C.— Neutral    Type — Specification — Three    sheets— No 
change. 

Relays,  D.C. — Use  of — One  sheet — No  change. 

Relays,    D.C. — Table    of    Minimum    Resistance — One    sheet — No 
change. 

Releases,  Mech.  and  Elec— Specification— One  sheet— No  change. 
Resistors  for  Line  and  Track  Circuits— Specification— Five  sheets- 
No  change. 

Roundels,  Lenses  and  Glass  Slides— Specification— Six  sheets—  No 
change. 

Rules  Governing  Maintenance  of  Block  Signals— One  sheet — No 
change. 

Rules  Governing  Maintenance  at  Interlocking  Plants — Six  sheets- 
No  change. 

Rules  Governing  Signal  Foremen— One  sheet — No  change. 
Rules  Governing  Signal  Maintainers— Two  sheets — No  change. 
Rules  Governing  Signal  Supervisors — One  sheet— No  change. 
Signs  or  Markers  for  Enginemen — Sixteen  sheets — No  change. 
Signal,  A.C.  Motor  Semaphore — Specification — ^Eleven  sheets — Sub- 
stitute. 

Signal,    D.C.    Motor    Semaphore — Specification — Four    sheets — No 
change. 

Signal,  Electric  Color  Light— Specification— -Seven  Sheets — Insert. 
Signal,  Electric  Position  Light— Specification— Seven  sheets— Insert. 
Signaling  Practice — Essentials — Two  sheets— No  change. 
Standard  Sections— Unit  Specifications— Two  sheets— Substitute. 
Steel,  Machinery — Specification —  One  sheet — No  change. 
Switchboard — Material  for — Seven  sheets — No  change. 
Switchboard— Material,  Requisites- Four  sheets— No  change. 
Subdivision  Sheet  T-Z — One  sheet— Obsolete. 
Tape,  Friction — Specification — Four  Sheets — Substitute. 
Tape,  Rubber  Insulating— Specification— Three  sheets— No  change. 
Terminology,  Electric  Wire  and  Cable— Two  sheets— No  change. 
Train  Control  Automatic— Requisites— One  sheet— No  change. 
Transformers,     Single-Phase,     Alr-Cooled    Track— Speelficatlon— 
Seven  Sheets — Substitute. 


r 


Transformers,    Single-Phase,    Line,    Oil-Immersed,  Self-Cooled  

Specification — Xine  sheets — Substitute. 

Trunking,   Grooved,  and   Capping— Specifications— Three  sheets- 
No  change. 

Volt-Ammeters,  D.C.  Portable — Specification — Six  sheets — Insert. 
Voltage  Ranges  for  Signal  Work — One  sheet — No  change. 

Wires,  Copper  Clad  Steel  Bonding— Specification— Two  sheets— No 
change. 

Wires,  E.B.B.  Bonding— Specification— Two  sheets — No  change. 

Wire,    Line,    Copper    Clad    Steel — Specification— Two    sheets— No 
change. 

Wire   Line  W.P.D.B.  Galvanized  B.B.— Specification— Four  sheets 
— No  change. 

Wire,    Line,    W.P.D.B.,    Copper — Specification — Three    sheets— No 
change. 

Wire,  Magnet,  Cop.  Enam. — Specification — Two  sheets — No  change. 

Wire,  Messenger,  Galv. — Specification — One  sheet — No  change. 

Wire,  Messenger,  Sags  for — Table — One  sheet — No  change. 

Wire,  Rubber  Insulated — Specification — Five  sheets — No  change. 

Wire,  Signal,  Galv.  Steel — Specification — Two  sheets — No  change. 

Wire,  Insulation  Resistance — Table — One  sheet — No  change. 

Wire,    Stranded    and    Flexible    Condr's — Table — One    sheet  No 

change. 

Wire  Insulating  Machine — Type — One  sheet — No  change. 

Wire  Inspection  Report — One  sheet — No  change. 

Wire  Crossings  Over  Other  Lines — Specifications — Eight  sheets — 
No  change. 


8 


DESIGNS— STANDARD  DRAWINGS. 

Instructions  for  Inserting  Subject  Matter  Adopted  January,  1920. 

The  following  arrangement  is  for  placing  the  drawings  in  numer- 
ical order. 

Title  Page — One  sheet — Substitute. 

Index — Alphabetical. 

Paging  1  to  10  inclusive — Ten  sheets — Substitute. 

Index — Numerical. 

Paging  1  to  7  inclusive — Seven  sheets — Substitute. 

DRAWINGS  AS  FOLLOWS: 

1001,  1002,  1007,  1008,  1009,  1010,  1011  and  1013 — Eight 

Sheets — No  Change. 
1014 — One  sheets — Substitute. 

1015  1016,1017,  1018,  1019, 1020, 1021, 1022,1023,1024,1025, 
1030  1031,  1032,  1033,  1034,  1035,  1036,  1038,  1039,  1040, 
1041  1043  1044,  1045,  1049,  1050,  1052,  1053,  1055,  1056, 
1057'  1058,  1059,  1060,  1061,  1062,  1063,  1064,  1065,  1066, 
1067'  1068,  1069,  1070,  1071,  1072,  1073,  1080,  1082,  1083, 
1084',  1085,  1086,  1087,  1088,  1089,  1090,  1091,  1092,  1093, 
1094,  1095,  1096,  1097,  1098,  1099,  1100  and  1101— Sixty- 
nine  sheets— No  change. 

1102 — One  sheet — Substitute. 

1103  1104,  1105,  1106,  1107,  1108,  1109,  1154,  1155,  1156, 
ll'57,  1165,  1166,  1167,  1173,  1174,  1175,  1176,  1177,  1178, 
1179  1180,  1181,  1182,  1183,  1184,  1185,  1190,  1191,  1194, 
1195  1196,  1197,  1198,  1199,  1200,  1201,  1202,  1203,  1204, 
1205,  1206,  1207,  1217,  1219,  1220,  1222  and  1223— Forty- 
eight  sheets — No  change. 

1224- — One  sheet— Substitute.  ^  '< 

1125  1226  1227,  1228,  1229,  1230,  1231,  1232,  1233,  1235, 
12'36,  1237,  1238,  1239,  1240,  1241,  1242,  1243,  1244,  1246, 
1247— Twenty-one  sheets — No  change. 

1248  One  sheet — Insert  here  from  specification  section. 

1259,  1309,  1329,  1331,  1332,  1333,  1334,  1335  1336  1337, 
1338,  1339,  1340,  1341,  1342,  1343,  1344,  1345,  1350,  1351, 
1352  1355  1356,  1357,  1360,  1361,  1362,  1363,  1364,  1365, 
1366  1367,  1368,  1369,  1371,  1372,  1374,  1375,  1376,  1378, 
1379  1387  1388,  1389,  1390,  1391,  1392,  1393,  1394,  1395, 
1396,  1397,  1398,  1399,  1400,  1402,  1420,  1422  and  1424— 
Fifty'-nine  sheets — No  change. 

1459,  1460  and  1461— Three  Sheets — Insert. 

Symbols  1,  2,  3,  4,  5,  6,  7,  8,  9,  10,  11,  12  and  13— Thirteen 
sheets — No  change. 


